Buttom Bit . Bit head: dia:38mm , Tail hole dia:22.2mm , No of buttons: 7 , Button spec: 58mm+27mm, Tape:12°, Body len

Place of Origin	China
Brand Name	Neutral

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Product Description

Bit head: dia:38mm , Tail hole dia:22.2mm , No of buttons: 7 , Button spec: 5*8mm+2*7mm, Tape:12°, Body length:70mm

Buttom Bit . Bit head: dia:38mm , Tail hole dia:22.2mm , No of buttons: 7 , Button spec: 5*8mm+2*7mm, Tape:12°, Body len 0

Buttom Bit . Bit head: dia:38mm , Tail hole dia:22.2mm , No of buttons: 7 , Button spec: 5*8mm+2*7mm, Tape:12°, Body len 1

Product information
-Name: Tapered Button Bits for quarrying, mining, tunneling
-Button No.: 4, 5, 6, 7, 8.
-Brand Name: KAIYU
-Diameter: 30/32/34/36/38/40/42/50/53mm
-Material: 35CrMoNiV, Carbide.
-Taper degree: 7°, 11°, 12°.
-Rod Shank: Hex19*108, hex 22*108,
-Machine: Rock Drill, Jack Hammer
-Packaging: Plastic Case
-Delivery time: 7-15days
-Certification: ISO9001: 2015
-Place of Origin: China
-Use: Drilling Tools
-Application: Used for Granite and Marble quarry, Gold mine, Railway, Tunnel etc.

Product Description :
Comparing with taper chisel and cross bits, taper button bits have higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, button bits can be divided into types of hemispherical, conical and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.
Made with high quality of raw material through special heat treatment ,especially, tungsten carbide of tapered button bits are from Boart long year,widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying.
Diameter of bits from 30mm to 50mm with 4 ,6,7,11,12 degree, premium alloy tapered drill steel with Hexagonal.22mm and Hexagonal.25mm,The deliver capacity are very strong and can completely meet customer's requirements on delivery design,number of buttons is 4,5,6,7,8,9,7 buttons is very popular for hold held (short holes ) and blast drilling system.