4” 5” 6” dth hammer DHD 340 350 button drilling bit

The DTH bit is the tool cutting rock. Sinodrills DTH bit is made of superior quality alloy steel which is made by Timken in U.S. Besides, all our DTH bit is using the brand "Element Six" T.C carbide which provides (the T.C buttons) for Boart Longyear. In addition art manufacturing technology makes our DTH bit is with higher and more reliable quality. Different face style makes DTH bit is suitable for various rock conditions. Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice. Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.

Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.

Model	Thread Connection	OD(mm)	Rec.Hole Size	Shank Style	Working Pressure(Bar)
CD35	API 2 3/8" Reg	φ82mm	φ90-φ105	DHD3.5 CD35	1.0-1.5Mpa
CD45	API 2 3/8" Reg	φ99mm	φ110-φ135	Cop44 DHD340 CD45	1.0-2.5Mpa
CSD4	API 2 3/8" Reg	φ99mm	φ110-φ135	SD4 CSD4	1.0-2.5Mpa
CQL40	API 2 3/8" Reg	φ99mm	φ110-φ135	QL40 CQL40	1.0-2.5Mpa
CD55	API 2 3/8" Reg API 3 1/2" Reg	φ125mm	φ135-φ155	Cop54 DHD350R CD55	1.0-2.5Mpa
CSD5	API 3 1/2" Reg	φ125mm	φ135-φ155	SD5 CSD5	1.0-2.5Mpa
CQL50	API 3 1/2" Reg	φ125mm	φ135-φ155	Cop54 QL50 CQL50	1.0-2.5Mpa
CD65	API 3 1/2" Reg	φ148mm	φ155-φ190	Cop64 DHD360 CD65	1.0-2.5Mpa
CSD6	API 3 1/2" Reg	φ148mm	φ155-φ190	SD6 CSD6	1.0-2.5Mpa
CQL60	API 3 1/2" Reg	φ148mm	φ155-φ190	Cop64 QL60 CQL60	1.0-2.5Mpa
CD85	API 4 1/2" Reg	φ185mm	φ195-φ254	Cop84 DHD380 CD85	1.0-2.5Mpa
CSD85	API 4 1/2" Reg	φ185mm	φ195-φ254	SD8 CSD8	1.0-2.5Mpa
CQL80	API 4 1/2" Reg	φ185mm	φ195-φ254	QL80 CQL80	1.0-2.5Mpa
CSD10	API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg	φ225mm	φ254-φ311	SD10 CSD10	1.0-2.5Mpa
CN100	API 6 5/8" Reg	φ225mm	φ254-φ311	NUMA100 CN100	1.0-2.5Mpa
CSD12	API 6 5/8" Reg	φ275mm	φ305-φ445	SD12 CSD12	1.0-2.5Mpa