Thread Connection

Dia.(mm)	Thread Connection	Buttons		Air Holes		Weight(kg)
		Gauge	Front
51	R32	4*11	2*9	1	2	1.00
64	R32	6*12	3*11	3	1	1.70
64	T38	6*12	3*10	1	2	1.70
76	T38	7*12	4*10	3	1	3.00
76	T45	8*11	6*10	4	-	3.00
78	T38	8*11	5*11	4	-	3.10
89	R32	8*12	6*11	4	-	3.50
89	R38	8*12	6*11	4	-	3.50
89	T45	8*12	6*11	4	-	3.50
89	T51	8*12	6*11	4	-	4.50
102	T45	8*14	6*13	4	-	5.50
102	T51	8*14	6*13	4	-	5.50
105	R38	8*14	6*13	4	-	4.50
115	R38	8*14	7*13	4	-	4.80
115	T51	8*14	7*13	4	-	4.80
125	R38	8*14	8*13	4	-	5.50
127	T51	8*14	8*13	4	-	6.50

Taper Connection
 

Drill bit diameter		Taper(°)
(mm)	(in)
28	1  3/32	6,7
30	1  3/16	6,7
32	1 1/4	6,7,11,12
34	1 11/32	6,7,11,12
35	1  3/8	6,7,11,12
36	1 13/32	6,7,11,12
38	1  1/2	6,7,11,12
40	1  9/16	6,7,11,12
41	1 5/8	6,7,11,12
42	1 21/32	6,7,11,12
43	1 11/16	6,7,11,12
45	1 3/4	6,7,11,12
50	1 31/32	6,7,11,12
60	2 3/8	6,7,11,12

1. Q:Are you manufacturery or trade company?
A:We are manufacturer, has more than 20 years of professional production experience .Products including Top Hammer Drill Rod, Drill Bit,Tapper Button Bit and Rod, Integral Drill Rod etc.

2.Q: Do you offer warranty on your products?
A: Yes. For different products we offer different warranty that cover all manufacturing defects in materials and workmanship. The longest period of warranty is 6 months after shipping date.

3,Q: How is your quality control?
A: We have our own experienced QC.There will be strict inspection and testing for every order before shipping out.

4.Q: How long is your delivery time?
A: 1-3 days for the products in stock; regular order delivery in 2-3 weeks.

5.Q: After Services:
A: (1) Our sales team will response for your question within 24 hours (Holidays included).
(2) Technical Support will be available in any time.
(3)Free replacement will provide once the failure confirmed caused by our product quality.

6. Q:Methods of Payment:
A:We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc. You can choose your preferred payment methods before we shipping the goods.