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Place of Origin : China
Brand Name : EST
Certification : ISO9001
Model Number : All types
MOQ : 10pces
Price : USD$10-USD$50/pces FOBQingdao
Packaging Details : wooden case/ carton
Delivery Time : 10-15days
Payment Terms : TT, L/C
Supply Ability : 100000pces per month
Product discription:
	 Rock drill bits are used to mine and construction. 
	Button bit: 
	Head 45/48/51/57/64/70/76/89/102/115with thread R25/32/38/45/51 
	Chisel bit: Head32/34/36/38/40/42/43/44/46with socket22/24/25and the taper 12o/6o/7o 
	Cross bit: 
	Head 32/34/36/38/40/43/44/46with socket22/24/25and the taper12o/6o/7o 
	Retrac bit: 
	Head 51/64/76/89/102with thread R32/38, T38/45/51 
	Coal bit:
	Head 28/42/44
The chisel bit is made from grade hard alloy and special steel, generally matched with the light-duty rock drill, to drill the rock hole within diameter of 50mm.
Type to choose
| 
					 Drill Type  | 
				
					 Bit diamater (D)  | 
				
					 Taper  | 
				
					 Whter hole  | 
				
					 (d) mm  | 
				
					 Part on  | 
			|
| 
					 mm  | 
				
					 in  | 
			|||||
| 
					 
						   | 
				
					 30  | 
				
					 1 3/16"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y130-722  | 
			
| 
					 32  | 
				
					 1 17/64"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y132-722  | 
			|
| 
					 34  | 
				
					 1 11/32"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y134-722  | 
			|
| 
					 36  | 
				
					 1 27/64"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y136-722  | 
			|
| 
					 38  | 
				
					 1 1/2"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y138-722  | 
			|
| 
					 40  | 
				
					 1 37/64"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y140-722  | 
			|
| 
					 42  | 
				
					 1 21/32"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y142-722  | 
			|
| 
					 43  | 
				
					 1 11/16"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y143-722  | 
			|
| 
					 44  | 
				
					 1 47/64"  | 
				
					 7°  | 
				
					 2  | 
				
					 22  | 
				
					 Y144-722  | 
			|
| 
					 46  | 
				
					 1 13/16"  | 
				
					 7°  | 
				
					 2  | 
			|||
| 
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                        chisel bits Images |