6 inch Oil and Gas Rock Drill Bit Breaker-Henan JCB Superhard Material Co., Ltd

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Details

Specification

PDC Drill Bit Box (Drill Bit Breaker) Standard Size
Inch	Millimeters	Inch	Millimeters
4 5/8	117.5	8 1/2	215.9
4 3/4	120.6	8 3/4	222.2
5 1/4	133.3	9 1/2	241.3
5 1/2	139.7	9 5/8	244.5
5 5/8	142.9	9 7/8	250.8
5 3/4	146.1	10 5/8	269.9
5 7/8	149.2	11 5/8	295.3
6	152.4	12 1/4	311.1
6 1/4	158.8	13 5/8	346.1
6 1/2	165.1	14 3/4	374.6
6 3/4	171.4	15 1/2	393.7
7 1/2	190.5	16	406.4
7 5/8	193.7	17 1/2	444.5
7 7/8	200	26	660.4