Russian Type Knsh-110 Knsh-130 Low Air Pressure DTH Button Bit Crown Boring Drill Bits

• Customization: Available
• Customized: Customized
• Type: Center Drill Bit
• Model NO.: Knsh-110 Knsh-130 Low Air Pressure DTH Button Bit
• Material: High Carbon Steel
• Usage: Masonry Drilling
• Color: Blue
• Application: Down The Hole Drilling. Coal Mining
• Brand: Bestlink
• Model: Ql60-254
• Transport Package: Plywood
• Specification: CE
• Trademark: BESTLINK
• Origin: Xiamen, China
• HS Code: 82071990
• Production Capacity: 10000PCS/Month

Product Description

Russian Type Knsh-110 Knsh-130 Low Air Pressure DTH Button Bit Crown Boring Drill Bits



DTH drilling is a percussion system driving a piston inside hammer body with up and down motion by compressed air and transmitting an intensive percussion energy to the bit to enable the drilling by crushing the rock. Drilling method by DTH hammer exerts high drilling performance especially for drilling hard rock and contributes for shortening work schedule. Hence, this method is widely utilized for foundation work, landslide prevention work, quarrying services, marine civil work, etc.


Bestlink company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries. Bestlink DTH hammers transmit intensive impact energy with low energy loss. This results in good rock breakage, high penetration rates and high productivity. The equipment is designed to give optimal hole quality, reliability, and long service life, as well as the best blasting results and low total operation cost.




Drill and blast engineers and water well contractors trust Bestlink 's DTH equipment because of the precision engineering and high standards of drilling efficiency built into each of our hammers and bits.



DTH bits specifications:

Hammer inch	Bits diameter		Shank
	Metric	Inch
1"	64mm-70mm	2 1/2"-2 3/4"	BR1
2"	70mm-95mm	2 3/4"-3 3/4"	MACH20/BR2
3"	90mm-102mm	3 1/2"-4"	COP32/COP34/MACH303 M30/DHD3.5/BR3
4"	105mm-152mm	4 1/8"-6"	COP44/DHD340/MACH44 SD4/M40/QL40
5"	133mm-165mm	5 1/4"-6 1/2"	COP54/DHD350R/MACH50 SD5/M50/QL50/BR5
6"	152mm-254mm	4 1/8"-10"	COP64/DHD360/SD6 M60/QL60/Bulroc BR6
8"	203mm-330mm	8"-13"	COP84/DHD380/SD8 QL80/M80
10"	254mm-380mm	10"-15"	SD10 NUMA100
12"	305mm-508mm	12"-20"	DHD1120/SD12 NUMA120/NUMA125
To know 12-30 inch bits information, contact us now

DTH hammers specifications:

Hammers	Bit Shank	Connection Thread	Suitable bit	Working pressure	Air consumption
1-3" Middle-low pressure DTH hammers	BR1 BR2 BR3	RD40 box RD50 box API 2 3/8" Reg	Φ64-Φ76mm Φ70-Φ90mm Φ90-Φ110mm	0.7-1.75Mpa	0.7 Mpa	4.5 m3/min
					1.0 Mpa	4 m3/min
					1.4 Mpa	5 m3/min
3" hammers	DHD3.5 COP32/COP34 M30	API 2 3/8"Reg	Φ90-Φ110mm	1.0-1.5Mpa	1.0 Mpa	4.5 m3/min
					1.5 Mpa	9 m3/min
4" hammers	DHD340 COP44 QL40 SD4 M40	API 2 3/8"Reg	Φ105-Φ130mm	1.0-2.5Mpa	1.0 Mpa	6 m3/min
					1.8 Mpa	10 m3/min
					2.4 Mpa	15 m3/min
5" hammers	DHD350 COP54 QL50 SD5 M50	API 2 3/8"Reg API 3 1/2"Reg	Φ130-Φ156mm	1.0-2.5Mpa	1.0 Mpa	9 m3/min
					1.8 Mpa	15 m3/min
					2.4 Mpa	23 m3/min
6" hammers	DHD360 COP64 QL60 SD6 M60	API 3 1/2"Reg	Φ152-Φ203mm	1.0-2.5Mpa	1.0 Mpa	10 m3/min
					1.8 Mpa	20 m3/min
					2.4 Mpa	28.5 m3/min
8" hammers	DHD380 COP84 QL80 SD8 M80	API 4 1/2"Reg	Φ200-Φ279mm	1.0-2.5Mpa	1.0Mpa	15m3/min
					1.8Mpa	26m3/min
					2.4Mpa	34m3/min
10" hammers	SD10 NUMA100	API 6 5/8"Reg	Φ254-Φ330mm	1.0-2.5Mpa	1.0Mpa	22m3/min
					1.8Mpa	40m3/min
					2.4Mpa	55m3/min
12" hammers	DHD1120 SD12 NUMA120 NUMA125	API 6 5/8"Reg	Φ305-Φ381mm	1.0-2.5Mpa	1.0Mpa	30m3/min
					1.8Mpa	56m3/min
					2.4Mpa	78m3/min