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General 671 and 753 series Dig R Tach Hydraulic Hole Diggers
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 General Equipment Company's 671/753 Series DIG-R-TACH® earth auger attachments are engineered to perform with skid steer loaders, small excavators, knuckleboom cranes and small backhoes. The smaller Series 16 features a two speed chain/sprocket drive system that allows it to balance smaller flow volumes to auger diameters. Results are cleaner holes with less loose soil and debris.
For higher capacity drilling, the Series 24 is designed for the larger hydraulic systems of backhoes and small excavators. Installation is simple with a dipper-stick mounting bracket.
Low speed hydraulic motors and chain reduction drives deliver smooth, efficient torque transfer to the auger drive shaft while a standard 2 inch hexagon auger drive eliminates connection wear problems. The 753 Models are the same as the 671 except they have a 2-9/16 inch round drive connection.
A complete line of earth augers up to 36" diameter is available with Pengo® type boring heads. For additional drilling depth, full flighted auger extensions can be added.
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671SERIES DIG-R-TACH ® |
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MODEL |
671 Series 16 |
671 Series 24 |
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Hydraulic System Requirements |
5 -20 GPM (19-76 lit/min) flow range. 15GPM (57 lit/min) optimum flow rate. 1500-3000 PSI (105-210 kg.cm2) auxiliary hydraulic system pressure relief valve setting range |
15-25 GPM (57-95 lit/min) flow range. 20GPM (76 lit/min) optimum flow rate. 1500-3000 PSI (105-210 kg/cm2) auxiliary hydraulic system pressure relief valve setting range. |
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Auxiliary hydraulic system flow rate determines auger rotational speed. Auxiliary hydraulic system pressure relief valve setting determines actual digging torque produced. Minimal flow rates and relief valve settings may not produce satisfactory digging performance for specific auger diameters and soil types.
Minimum oil viscosity is 50 SSU with a minimum of .125 percent zinc antiwear additives. Hydraulic system must have sufficient heat rejection capacity to limit maximum oil temperature to 200 °F (93°C) at maximum ambient temperature. |
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Transmission |
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Drive System |
Auxiliary hydraulic system of carrier vehicle serves as power. Low speed, high torque hydraulic motor transfers torque to auger driveshaft though roller chain reduction. Forward and reverse auger direction controlled by auxiliary hydraulic valve foot pedal or hand control. Series 16 incorporates dual sprockets clusters that provide high/low auger speed selection. |
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Driveshaft Connection To Auger |
2" (51 mm) industry standard hexagon |
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Maximum Drilling Torque |
High Speed: 665 ft. lbs. (900 N.m.) at 2500 PSI (175 kg/cm2) |
2018 ft. lbs. (2724 N.m.) at 2500 PSI (175 kg/cm2) |
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Low Speed: 1330 ft. lbs. (1800 N.m.) at 2500 PSI (175 kg/cm2) |
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Input
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Auger RPM
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| GPM |
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Lit/Min |
Low |
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High |
| 5 |
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(19) |
- |
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58 |
| 6 |
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(23) |
- |
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70 |
| 8 |
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30) |
- |
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93 |
| 10 |
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(38) |
57 |
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116 |
| 12 |
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(45) |
68 |
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139 |
| 15 |
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(57) |
85 |
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174 |
| 18 |
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(68) |
102 |
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- |
| 20 |
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(76) |
113 |
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- |
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Input
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Auger RPM
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| GPM |
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Lit/Min |
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High |
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| 15 |
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(57) |
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49 |
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| 18 |
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(68) |
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58 |
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| 20 |
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(76) |
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65 |
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| 22 |
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(83) |
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71 |
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| 25 |
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(95) |
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81 |
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| - |
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- |
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- |
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| - |
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- |
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- |
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Auger |
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Design |
Auger construction features Pengo® type, cast-steel boring heads, forged-steel teeth for maximum digging performance and versatility. Think, cross-sectioned helicoid or sectional fighting delivers strength and wear resistance. Fighting pitch is set to produce cleaner, more useable holes in sandy or granular-type soils. All boring head wear parts are field replaceable. |
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Lead Auger and Auger Extension Length |
Available in industry standard lengths and diameters. Mounted DIG-R-TACH, auger/extensions and excavated soil can result in substantial weight. Refer to carrier vehicle lift height and operational center of gravity envelope information to determine maximum allowable auger length and weight combinations. |
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General |
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Plumb Line Mechanism |
Both Series 16 and 24 use double-jointed, universal-joint swivel with full-length sleeved pins |
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Basic Weight |
285 lbs. (130 kg) |
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Frame |
Unitized, welded steel plate |
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Details and Accessories
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- 2" Hex output shaft
- Used most often with skid steer loaders.
- 15 GPM Continuous duty flow rate
- Weight: 285 lbs.
Input Flow / Auger RPM
- 5 GPM / 58 RPM high
- 10 GPM / 57 RPM low, 116 RPM high
- 15 GPM / 85 RPM low, 174 RPM high
- 20 GPM / 113 RPM low
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Details and Accessories
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- 2" Hex output shaft
- Used most often with skid steer loaders.
- 15 GPM Continuous duty flow rate
- Weight: 285 lbs.
Input Flow / Auger RPM
- 5 GPM / 58 RPM high
- 10 GPM / 57 RPM low, 116 RPM high
- 15 GPM / 85 RPM low, 174 RPM high
- 20 GPM / 113 RPM low
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Model #
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Short Description
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Price + s/h
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M753-16
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General 753 Dig-R-Tach, Series 16 base drive unit.
Same specs as M671-16 but has 2 9/16" round output shaft. |
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$1350
$150
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M753-24
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General 753 Dig-R-Tach, Series 24 base drive unit. Same specs as M671-24 but has 2 9/16" round output shaft. |
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$2050
$150
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Mounting Frames and Brackets
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Model Number
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671-1100
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For use with all skid loaders. Utilizing the bobcat type bucket attachment system. 255 lbs.
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$450 + 240 s/h
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671-3000
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For use with 1 inch diameter dipperstick pins. 45 lbs
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$295 + 45s/h
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671-3100
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For use with 1.5 inch diameter dipperstick pins. 53 lbs
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$295 + 53s/h
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671-3200
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For use with 1.75 inch diameter dipperstick pins. 58 lbs
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$295 + 58s/h
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671-3300
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For use with 2 inch dipprstick pins. 60 lbs
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$295 + 60s/h
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671-3400
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For use with 2.5 inch diameter dipperstick pins. 68 lbs
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$295 + 69s/h
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General 6710 Series Earth Augers for use with 671 Dig-R-Tach®
Available in 4 and 5 foot effective digging depths. Each equipped with 3/8 inch thickness, single pitch sectional or helicoid flighting the ful length of the auger axle, Pengo® LDOBH type cast steel boring head and 2 inch hexagon drive connection. For use with Series 671 DIG-R-TACH and competitive models of popular hydraulically powered earth drilling attachments utilizing a 2 inch hexagon drive connection.
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Model Number
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Flighting OD
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Cutting Dia.
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Digging Depth
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Weight
(lbs.)
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Price
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6710-6PE4 |
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6" |
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7.5" |
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4' |
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70 |
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$500 + $70 s/h |
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6710-6PE5 |
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6" |
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7.5" |
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5' |
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85 |
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$550 +$85 s/h |
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6710-9PE4 |
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8" |
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9.5" |
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4' |
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80 |
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$575 + $85 s/h |
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6710-9PE5 |
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8" |
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9.5" |
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5' |
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95 |
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$640 + $95 s/h |
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6710-12PE4 |
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12" |
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13.5 |
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4' |
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108 |
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$615 + $110 s/h |
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6710-12PE5 |
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12" |
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13.5 |
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5' |
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130 |
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$655 + $130 s/h |
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6710-16PE4 |
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16" |
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17.5 |
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4' |
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130 |
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$800 + $130s/h |
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6710-16PE5 |
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16" |
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17.5 |
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5' |
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160 |
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$860 + $160s/h |
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6710-18PE4 |
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18" |
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19.5 |
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4' |
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140 |
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$850 + $140s/h |
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6710-18PE5 |
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18" |
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19.5 |
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5' |
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170 |
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$945 + $170s/h |
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6710-24PE4 |
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24" |
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25.5 |
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4' |
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250 |
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$1360 + $180s/h |
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6710-24PE5 |
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24" |
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25.5 |
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5' |
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280 |
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$1575 + $270s/h |
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6710-30PE4 |
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30" |
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31.5 |
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4' |
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313 |
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$1725 +$300s/h |
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6710-30PE5 |
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30" |
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31.5 |
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5' |
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350 |
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$1910 + $340s/h |
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6710-36PE4 |
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36" |
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37.5 |
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4' |
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375 |
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$2080 + $369s/h |
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6710-36PE5 |
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36" |
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37.5 |
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5' |
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420 |
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$2250 + $380s/h |
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General 6750 Series Earth Auger for use with 753 Dig-R-Tach®
Available in 4 and 5 foot effective digging depths. Each equipped with 3/8 inch thickness, single pitch sectional or helicoid flighting the ful length of the auger axle, Pengo® LDOBH type cast steel boring head and 2-9/16 inch round drive connection. For use with Series 753 DIG-R-TACH and competitive models of popular brands hydraulically powered earth drilling attachments utilizing a 2-9/16 inch round drive connection.
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Model Number
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Flighting OD
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Cutting Dia.
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Digging Depth
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Weight
(lbs.)
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Price
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6750-6PE4 |
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6" |
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7.5" |
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4' |
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70 |
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$500 + $70s/h |
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6750-6PE5 |
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6" |
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7.5" |
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5' |
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85 |
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$550 + $85s/h |
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6750-9PE4 |
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8" |
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9.5" |
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4' |
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80 |
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$575 + $85s/h |
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6750-9PE5 |
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8" |
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9.5" |
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5' |
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95 |
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$640 + $95s/h |
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6750-12PE4 |
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12" |
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13.5 |
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4' |
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108 |
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$615 + $110s/h |
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6750-12PE5 |
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12" |
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13.5 |
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5' |
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130 |
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$655 + $130s/h |
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6750-16PE4 |
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16" |
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17.5 |
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4' |
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130 |
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$800 + $130s/h |
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6750-16PE5 |
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16" |
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17.5 |
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5' |
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160 |
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$860 + $160s/h |
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6750-18PE4 |
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18" |
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19.5 |
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4' |
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140 |
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$850 + $140s/h |
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6750-18PE5 |
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18" |
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19.5 |
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5' |
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170 |
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$945 + $170s/h |
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6750-24PE4 |
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24" |
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25.5 |
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4' |
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250 |
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$1360 + $240s/h |
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6750-24PE5 |
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24" |
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25.5 |
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5' |
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280 |
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$1575 + $270s/h |
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6750-30PE4 |
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30" |
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31.5 |
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4' |
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313 |
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$1725 + $300s/h |
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6750-30PE5 |
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30" |
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31.5 |
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5' |
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350 |
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$1910 + $340s/h |
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6750-36PE4 |
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36" |
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37.5 |
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4' |
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375 |
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$2080 +$369s/h |
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6750-36PE5 |
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36" |
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37.5 |
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5' |
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420 |
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$2250 + $380s/h |
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Equipment for:
Construction:
Farm:
Other:
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