Manufacturer Drill Bit Tappered Drill Bit 7degrees 11degrees12degrees

• After-sales Service: Video Technical Support, Online Support, Spare PAR
• Certification: ISO 9001:2000
• Manufacturing Process: Forging
• Transport Package: Carton
• Specification: 23X18X23 cm
• Trademark: D Miningwell
• Model NO.: Tappered Drill Bit
• Origin: Zhejiang, China
• Production Capacity: 5000PCS Per Month

Product Description

Taper button bits

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°, 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.
 

DIAMETER		BUTTONS		FLUSHING	CARBIDE	FACE
MM	IN	GAUGE NO/ SIZE	FRONT NO/ SIZE	HOLE	PROFILE	PROFILE
32	1 1/4''	5x7	2x7	IF 1G	Parabolic	Flat
38	1 1/2''	5x9	2x7	1F2G	Conical	Flat
36	1 13/32''	5x8	2x7	2F 1G	Conical	Flat
38	1 1/2''	5x9	2x7	2F 1G	Conical	Flat
38	1 1/2''	5x9	2x7	2F 1G	Conical	Flat
40	1 9/16''	5x9	2x8	2F 1G	Conical	Flat
41	1 5/8''	5x9	2x8	2F 1G	Conical	Flat
41	1 5/8''	5x9	2x8	2F 1G	Parabolic	Flat

Taper drill rod
 

1. Steel grade: 95CrMo equivalent to SANDBAR 20 or C253, 55SiMnMo

2. Shank size: hex19mm hex.22mm, hex.25mm including Plug Hole Rod 

3. Head Diameter: 24mm-44mm

4. Length: 0.4m - 8m

5. Package: in wooden case or in bundles.