3 1/4″ (83mm) Double Key Hollow Stem Auger

4.25HollowStemAugers
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3 1/4″ (83mm) Double Key Hollow Stem Auger
 

 

Description

All 3 1/4″ (83mm) Double Key Hollow Stem Augers feature a continuous hardfaced flighting design, 3/8″ (9.5mm) thick on the outer edge with a 5″ pitch. The tool joints are made from 4142 alloy steel and feature single-bolt connections.

 

Specifications:

No Description Part # Lbs. Kg.
Auger Section
1 3 1/4″ (83mm) DK Hollow Stem Auger 3 1/4″ (83mm) I.D. x 6 5/8″ (168mm) O.D. x 5′ (1524mm) A314200 81 36.7
2 3 1/4″ (83mm) DK Drive Cap with 1 5/8″ (41mm) Hex Pin ADC314210 22 10
2 3 1/4″ (83mm) DK Drive Cap with 2″ (51mm) Hex Pin ADC314211 23 10.4
3 #3 Nut & Bolt for Rod-to-Cap Adapter ANAB3 0.9 0.4
4 3 1/8″ (79mm) Pilot Bit Connector (AW Box – 4 Thd N-Rod Box) APBC318AWB 11 5
4 3 1/8″ (79mm) Pilot Bit Connector (AWJ Box – 4 Thd N-Rod Box) APBC318WJB 12 5.4
4 3 1/8″ (79mm) Pilot Bit Connector (NW Box – 4 Thd N-Rod Box) APBC318NW 8 3.6
4 3 1/8″ (79mm) Pilot Bit Connector (NWJ Box – 4 Thd N-Rod Box) APBC318NWJ 11 5
5 Rod-to-Cap Adapter – AW Pin ARCAAWP 3 1.4
5 Rod-to-Cap Adapter – AWJ Pin ARCAAWJP 3 1.4
5 Rod-to-Cap Adapter – NW Pin ARCANWP 7 3.2
5 Rod-to-Cap Adapter – NWJ Pin ARCANWJP 6 2.7
6 AW Drill Rod – 5′ (1524mm) ADR5AW 21 9.5
6 AWJ Drill Rod – 5′ (1524mm) ADR5AWJ 23 10.4
6 NW Drill Rod – 5′ (1524mm) ADR5NW 31 14.1
6 NWJ Drill Rod – 5′ (1524mm) ADR5NWJ 35 15.9
Auger Repair Parts
1A 3 1/4″ (83mm) DK Pin Tool Joint ATJ3142P 7 3.2
1B 3 1/4″ (83mm) DK Box Tool Joint ATJ3142B 6 2.7
7 ALB2 Auger Lock Bolt ALB2 0.3 0.1
8 ABN2 Auger Bushing Nut ABN2 0.3 0.1
9 ADK1 Auger Drive Key ADK1 0.3 0.1
Auger Cutterheads and Pilot Bits
10 3 1/4″ (83mm) DK Blade Cutterhead – 7 1/2″ (190mm) O.D. ACH314250 11 5
10 3 1/4″ (83mm) DK Spade Cutterhead – 7 1/2″ (190mm) O.D. ACH314251 12 5.5
10 3 1/4″ (83mm) DK Blade/Bullet Cutterhead – 7 1/2″ (190mm) O.D. ACH314260 14 6.4
10 3 1/4″ (83mm) DK Spade/Bullet Cutterhead – 7 1/2″ (190mm) O.D. ACH314261 9 4.1
10 3 1/4″ (83mm) DK Bullet Cutterhead – 7 1/2″ (190mm) O.D. ACH314270 10 4.5
10 3 1/4″ (83mm) DK 5-T Cutterhead – 7 1/2″ (190mm) O.D. ACH314271 10 4.5
11 3 1/8″ (79mm) Apex Pilot Bit, 4-Thrd N-Rod Pin APB318APX 2.5 1.3
11 3 1/8″ (79mm) Bullet Pilot Bit, 4-Thrd N-Rod Pin APB318BUL 5 2.3

 

Roschen offers standard and heavy duty hollow stem augers in five foot lengths (custom lengths available), sizes ranging from 2 1/4" through 10 1/4" (identified by the auger I.D.) and with a 2 key or 3 key drive system. Diedrich and Acker octagonal style hollow stem augers are available upon request. Standard duty augers are generally recommended for shallower drilling, (less than 70'), and for lower torque drill rigs. Heavy duty augers feature heavier tool joints and larger auger bolts and drive keys. HD augers are generally recommended for drilling in excess of 70', and for higher torque drill rigs. All augers are quality crafted from premium materials and include continuous hard faced flighting, to ensure performance and longevity in even the most demanding drilling conditions. Questions? Contact a Roschen representative.