7 Degree Taper Rock Drill Small Hole Top Hammer Drifter Drilling Crown Button Bit with Copper Bush Sheet

• Punch Type: Round Punch
• Chisel Type: Butt Chisel
• Material: Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Usage: Masonry
• Color: Red
• Diameter: 32mm
• Height: 50mm
• Weight: 0.3kg
• Video Outgoing-Inspection: Provided
• Transport Package: Wooden
• Specification: CE
• Trademark: BESTLINK
• Origin: Xiamen
• HS Code: 82071990
• Production Capacity: 10000 Per Month
• Package Size: 5.00cm * 5.00cm * 5.00cm
• Package Gross Weight: 0.300kg

Product Description

Taper rock drill bits we have 3 types: Chisel bits, button bits, cross bits

Rock Drill Tapered Chisel Bits is suitable for H22mm and H25mm taper rock drill rods use. It have three taper degree: 7° , 11° , 12° . It's widely used for hard rock(f=8~18) drilling use.




 

Description	Diameter	Length	Weight
Taper Chisel Bit	mm	mm	kg
	20	65	0.15
Taper:a=4°,  6°,7°,11°,12°	22	65	0.15
Socket inside  Dia. D=15,19, 22, 25	25	69	0.15
	28	60	0.2
	30	55 80	0.2
	32	55 64 71 80	0.25
	34	71 80	0.29
	36	71 80	0.35
	38	71 80	0.4
	40	71 80	0.42
	42	71 80	0.42
	45	71 80	0.45

 

Description	Diameter	Length	Weight
Taper Cross Bit	mm	mm	kg
	24	71 80	0.18
Taper:a=6°,7°,11°,12°	26	71 80	0.19
Socket inside  Dia. D=19, 22, 25	28	71 80	0.19
	29	71 80	0.2
	30	50 67 71 80	0.3
	32	50 67 71 80	0.3
	33	71 80	0.32
	34	67 71 80	0.34
	35	67 71 80	0.35
	36	71 80	0.36
	38	67 71 80	0.42
	40	71 80	0.43
	41	71	0.45
	42	69 80	0.46
	44	80	0.47
	45	80	0.5
	46	80	0.51
	48	80	0.53
	50	80	0.6
	55	85	0.7

 

Description	Diameter	Length	No. of  buttons	Weight
Taper Button Bit	mm	mm		kg
	26	50	5	0.2
Taper:a=4°46"  6°,7°,11°,12°	27	50	5 6	0.2
Socket inside  Dia. D=19, 22, 25	28	50	4 5	0.2
	29	50	4	0.2
	30	50 80	4 5 6 7	0.2 0.3
	32	50 55 71 80	5 6 7 8	0.2 0.22 0.3
	33	50 55 71 80	6 7 8 9	0.2 0.3 0.36
	34	50 55	6 7 9	0.22 0.3
	35	55 71 80	7 8	0.22 0.3 0.37
	36	50 55	4 5 6 7	0.3 0.35
	37	55	7	0.3
	38	50 55	4 6 7	0.25 0.35
	40	50 55	4 6 7	0.35
	41	50 55 71	7	0.35
	42	50	4 5	0.4
	45	50 55 71	6 7	0.5