7 / 11 / 12 Degree Tapered Button Bits Small Rock Drill Bits

Price Negotiable

Price: negotiation

MOQ: 10 pieces

Delivery Time: 1-15 days

Brand: MIROC

Product Description

7 / 11 / 12 Degree Tapered Button Bits Small Rock Drill Bits

Tapered Rock Drill Bits we have three types: taper chisel bit, taper cross bit and taper button bit. It's 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. Taper button bits is the best sales product.

Taper Chisel Bits:

1) Tapered connection: 7,11,12

2) Alloy steel:42CrMo

3) Suitable carbide tips:YK20

4) Chisel bit diameter: 30-80mm

5)Technology:hot-pressing or welding

	Length (mm)	Chisel Size (H x W) mm	Weight (Kg)
1	26	10x7	0.17
2	28	10x7	0.18
3	30	13.5x8	0.22
4	32	13.5x8	0.24
5	34	13.5x8	0.27
6	36	13.5x8	0.3
7	38	13.5x8	0.33
8	38	15x9	0.33
9	40	3.5x9.2	0.38
10	40	15x9.8	0.38
11	42	13.5x9.2	0.41
12	42	15x9.8	0.41
13	43	13.5x9.2	0.42

Taper Button Bits:

1) Type: Taper button bits

2) Shank Hex.Size: 22mm,25mm

3) Diameter: 30-42mm.

4) Taper degree: 7°11°12°

5) Buttons quantity: 4, 5, 6, 7, 8

6) Package: Plastic case, wooden case.

	Bit Dia.	Buttons and Size (mm)		Flushing Hole		Weight
	mm	Front	Gauge	Front	Side	kg
1	32	1x8	3x8	1	1	0.24
2	33	2x7	5x7	2	1	0.26
3	34	2x7	4x7	1	1	0.29
4	35	2x7	5x8	1	1	0.33
5	36	2x7	5x8	1	1	0.37
6	38	1x8	3x9	1	1	0.37
7	40	1x8	3x9	1	1	0.38
8	41	2x7	5x9	1	1	0.42
9	42	2x8	5x9	1	1	0.43

Taper Cross Bits:

1) Tapered connection: 7,11,12

2) Chisel bit diameter: 30-60mm

3) Technology:hot-pressing or welding

4) Bit Body: Short skirt and Long skirt

5) Tapered drill rod: H22/H25*108mm

	Length (mm)	Chisel Size (H x W) mm	Weight (Kg)
1	30	12x12x8	0.29
2	32	12x12x8	0.31
3	33	12x12x8	0.33
4	34	12x12x8	0.34
5	35	12x12x8	0.36
6	36	13x12x8	0.37
7	38	14x12x8	0.43
8	40	15x12x8	0.47
9	41	15x12x8	0.49
10	42	15x12x8	0.51
11	43	15x12x8	0.53
12	45	17x14x8	0.58
13	48	17x14x8	0.67
14	50	19x14x8	0.72
15	55	20x16x10	0.92
16	60	20x16x10	1.19