DTH bit without foot valve

Categories: TIANHE Drill

Tags: DTH Bit

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1. Enhanced fatigue strength through advanced forging technology.
2. High quality carbide in optimal sizes for stable longevity.
3. Precision inlaying technology prevents carbide detachment.
4. State of the art heat treatment ensures superior hardness and wear resistance.
5. Tailored design and specialized processing for extended service life across various rock formations.

dhd shank

Model	Bit shank	L	Φ	Spline	Air hole	Rec. hole size(mm)
JS3.5B	BR33	165	54	7	2	90-105
JS3.5D	DHD3.5	181	54.6	8	2	90-105
JS4H	DHD340	209	65	8	2	105-130
JS5H	DHD350	260	84	8	2	140-152
JS6H	DHD360	308	101.5	8	2	152-190
JS8H	DHD380	350	128.5	10	2	203-245
TSK12H	DHD112	490	183	8	3	305-380

Model	Bit shank	L	Φ	Spline	Air hole	Rec. hole size(mm)
JS3.5M	MISSION35	225	55	8	2	90-105
JS4M	MISSION40	228	68	12	2	105-130
JS5M	MISSION50	260	82.5	12	2	140-152
JS6M	MISSION60	231	106.5	12	2	152-190
JS8M	MISSION80	329	128.5	12	2	203-245

Model	Bit shank	L	Φ	Spline	Air hole	Rec. hole size(mm)
JS4S	SD4	260	67	8	2	105-130
JS5S	SD5	258	82.5	8	2	140-152
JS6S	SD6	324	102	8	2	152-190
JS8S	SD8	321	118	8	2	203-245
JS10S	SD10	355.8	164.5	8	2	245-305
JSK12S	SD12	470	185.5	8	3	305-380

Model	Bit shank	L	Φ	Spline	Air hole	Rec. hole size(mm)
JS4X	QLX40	209.5	69	12	2	105-130
JS5L	QL50	240	88.5	12	2	140-152
JS6L	QL60	253	106	12	2	152-190
JS8L	QL80	331	136	16	2	203-245
TK12L	QL120	492	208.5	12	3	305-380

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