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Taper Products

Column tooth bit

The taper column tooth drill bit is also referred to as a taper ball-tooth bit. It is a type of rock drilling tool that is used in conjunction with the taper of the drill bit body and the taper of the drill rod. Based on the fixing process, the products are categorized into hot-inserted taper bits and cold-pressed column tooth bits. These products are widely utilized in industries such as mining, tunneling, anchoring engineering, quarrying, and more.

Production process of taper column tooth drill bit: steel incoming inspection -- drill bit body production (machining, warm extrusion) -- trouser heat treatment -- drilling tooth hole -- inlaid alloy tooth -- anti-corrosion treatment -- product inspection -- packaging and warehousing.

Common specifications and models of taper column tooth drill bit:

Taper of drill bit: 4.8 degrees, 6 degrees, 7 degrees, 11 degrees, 12 degrees.

Diameter of drill tail hole: 22mm, 23mm.
Drill diameter: 20mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 41mm, 42mm, 50mm, 60mm, 70mm.

Number of alloy teeth: 4, 5, 6, 7, and 8 teeth.

Taper ball-tooth drill bit
Taper	4° 6° 7° 11° 12°
Diameter	28-48mm
Diameter of tail-hole	15mm 19mm 20mm 22mm 23mm 24mm 25mm
Number of teeth	4, 5, 6, 7, and 8 teeth
Hydathode	1-4
Trousers	Ordinary lengthening, ordinary material, high-strength material
Tooth profile	Spherical gears, parabolic gears
Process	Cold pressing, hot setting

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