Flat Face T38 Button Bit for Black Stone

R25 R28 R32 T38 T45 T51 button bit

Introduction
Made with high quality alloy steel bar and tungsten carbides, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy. No matter what kinds of rock- Soft rock, loose-medium rock, hard rock and any other special formations, just tell us what you need and leave others at our disposal, We can also do according to customers' drawing or sample. So if you are interested in our products, please feel free to let us know. We also wish can do business with the people from all over the world.

Features
1. High-strength structure alloy steel and carbide.
2. Transmit intensive impact energy into the rock with the least loss of energy.
3. Longer service life.

Bit Face Shape Selection:

1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.

3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.

4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.

5. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Specifications
The technical parameter of Normal-type Thread button bits
Thread Type	dia	tip size(mm)		flushing holes		weight (kg)
	mm	gauge	front	side	front
R25 R28	32	3*8	1*8	1	1	0.3
	33	5*8	2*7	2	1	0.3
	35	5*8	2*7	2	1	0.4
	38	5*8	2*8	2	1	0.5
	38	5*9	2*7	2	1	0.5
	41	5*9	2*8	2	1	0.6
	42	5*9	2*8	2	1	0.6
	43	5*9	2*9	2	1	0.6
	43	5*9	2*8	2	1	0.6
	45	5*9	2*9	2	1	0.7
	48	5*10	2*9	2	1	0.78
	51	5*11	2*10	2	1	1.1
	57	5*12	2*10	2	1	1.3
R32	41	4*9	2*8	1	1	0.54
	43	4*9	2*9	1	1	0.55
	45	4*10	2*9	1	1	0.6

Thread Type	dia	tip size(mm)		flushing holes		weight (kg)
	mm	gauge	front	side	front
T38	57	5*11	3*10	1	1	1.6
	64	5*12	3*11	1	1	1.6
	76	5*14	3*12	1	2	2.4
T45	70	6*11	4*10	0	2	2.4
	76	6*13	4*10	0	2	2.6
	89	8*12	5*12	2	2	4.5
	102	8*13	6*12	2	2	5
	115	8*14	6*13	2	2	6.8
T51	89	8*12	5*12	2	2	4.9
	102	8*13	6*12	2	2	5.8
	115	8*14	6*13	2	2	6.8
	127	8*14	6*14	2	2	7.5