Insert tricone bit
Rubber sealed insert bit
Metal sealed insert bit
Teeth of steel tooth bits
Single-cone rock bit
Mining drill bits
Trenchless drilling tools
Engineering single roller bits
Rock reamer series
Rotary excavated bits
PDC Bit
Fittings

Fittings

2021-12-0141Author：Jiangxi Feilong Rock Bit Manufacture Co., Ltd.

1、Summarize

The tricone bit must be buckled in strict accordance with the operating procedures, using a standard unshackle or bit box to avoid damage to the bit or nozzle.

2、Structural features

3、Bit connection thread and recommended top-up torque

Connect thread size	Top-up torque is recommended
Connect thread size	Ft-lbs	KN.m
2 3/8	3000-3500	4.10-4.70
2 7/8	4500-5500	6.10-7.50
3 1/2	7000-9000	9.50-12.20
4 1/2	12000-16000	16.30-21.70
6 5/8	28000-32000	37.93-43.40
7 5/8	34000-40000	46.06-54.20

4、Main Type

Shackle (matching standard API turntable adapter) size of square core connection between shackle and turntable 336.5×336.5
4 1/2-4 1/4	8 1/4-8 1/2	14 3/4
4 3/8-4 1/2	8 3/4-9	15 1/2
5 1/4-5 3/4	9 1/2-9 7/8	16
5 7/8	10 1/2-11	17-17 1/2
6-6 1/4	11 5/8-11 3/4	19
6 1/2-6 7/8	12-12 3/8	23
7 3/8-8 1/8	13 1/8-13 3/4	26

Various wheel fastenpers can be customized to customer request.

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+86-795-3243041

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Company history

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Insert tricone bit

— Rubber sealed insert bit

— Metal sealed insert bit

Teeth of steel tooth bits

Single-cone rock bit

Mining drill bits

Trenchless drilling tools

— Engineering single roller bits

— Rock reamer series

Rotary excavated bits

PDC Bit

Fittings

Fittings

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