Triple Key Hollow Stem Auger 3 1/4inch (83mm)

• Customization: Available
• Standard: RoHS, BS, DIN
• Length: 1-6m
• Model NO.: 3 1/4inch
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Transport Package: Steel Bundle
• Specification: 3 1/4inch (83mm)
• Trademark: ROSCHEN
• Origin: China
• HS Code: 84314320
• Production Capacity: 200000sets/M

Product Description

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

All 3 1/4″ (83mm) Triple Key Hollow Stem Augers feature a continuous hardfaced flighting design, 3/8″ (9.5mm) thick on the outer edge with a 5″ (117mm) pitch. The tool joints are made from 4142 alloy steel and feature double-bolt connections.

	Description	Lbs.	Kg.
Auger Section
1	3 1/4″ (83mm) TK Hollow Stem Auger 3 1/4″ (83mm) I.D. x 6 5/8″ (169mm) O.D. x 5′ (1525mm)	81	36.7
2	3 1/4″ (83mm) TK Drive Cap with 1 5/8″ (41mm) Hex Pin	21	9.5
2	3 1/4″ (83mm) TK Drive Cap with 2″ (51mm) Hex Pin	25	11.3
3	#3 Nut & Bolt for Rod-to-Cap Adapter	0.9	0.4
4	3 1/8″ (79mm) Pilot Bit Connector (AW Box - 4 Thd N-Rod Box)	11	5
4	3 1/8″ (79mm) Pilot Bit Connector (AWJ Box - 4 Thd N-Rod Box)	12	5.4
4	3 1/8″ (79mm) Pilot Bit Connector (NW Box - 4 Thd N-Rod Box)	8	3.6
4	3 1/8″ (79mm) Pilot Bit Connector (NWJ Box - 4 Thd N-Rod Box)	11	5
5	Rod-to-Cap Adapter - AW Pin	3	1.4
5	Rod-to-Cap Adapter - AWJ Pin	3	1.4
5	Rod-to-Cap Adapter - NW Pin	7	3.2
5	Rod-to-Cap Adapter - NWJ Pin	6	2.7
6	AW Drill Rod - 5′ (1524mm)	21	9.5
6	AWJ Drill Rod - 5′ (1524mm)	23	10.4
6	NW Drill Rod - 5′ (1524mm)	31	14.1
6	NWJ Drill Rod - 5′ (1524mm)	35	15.9
Auger Repair Parts
1A	3 1/4″ (83mm) TK Pin Tool Joint	6	2.7
1B	3 1/4″ (83mm) TK Box Tool Joint	5	2.3
7	ALB1 Auger Lock Bolt	0.3	0.1
8	ABN1 Auger Bushing Nut	0.2	0.1
9	ADK1 Auger Drive Key	0.3	0.1
Auger Cutterheads and Pilot Bits
10	3 1/4″ (83mm) TK Blade Cutterhead - 7 1/2″ (190mm) O.D.	11	5
10	3 1/4″ (83mm) TK Spade Cutterhead - 7 1/2″ (190mm) O.D.	12	5.5
10	3 1/4″ (83mm) TK Blade/Bullet Cutterhead - 7 1/2″ (190mm) O.D.	14	6.4
10	3 1/4″ (83mm) TK Spade/Bullet Cutterhead - 7 1/2″ (190mm) O.D.	12	5.5
10	3 1/4″ (83mm) TK Bullet Cutterhead - 7 1/2″ (190mm) O.D.	12	5.5
10	3 1/4″ (83mm) TK 5-T Cutterhead - 7 1/2″ (190mm) O.D.	-	-
11	3 1/8″ (79mm) Apex Pilot Bit, 4-Thrd N-Rod Pin	2.5	1.3
11	3 1/8″ (79mm) Bullet Pilot Bit, 4-Thrd N-Rod Pin	5	2.3

Hollow Stem Augers (HSA) are commonly used to set groundwater monitoring wells for environmental and geotechnical applications. With the option of an augerhead on Geoprobe ® machines you can turn 4.25 in. hollow stem augers with the same machine you had just been using for percussion probing.


Hollow Stem Auger (HSA)
Hollow Stem Auger is used primarily when the bore hole will not remain open. HSA consists of a Hollow Auger (4¼" ID). During drilling the center is filled with rods connected to a plug at the bottom bit.

Once desired depths is reached, the center rods and plug are pulled out. This leaves a cased hole for sampling or installations.


Solid Stem Auger (SSA)
Solid Stem Auger is the fastest and most effective way of retrieving samples in soft soil conditions.

By corkscrewing the Auger into the soil our drillers can retrieve a very accurate formation profile.

SSA can also be used to set monitoring wells and install instrumentation in certain soil conditions.