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Chisel Drill Bits
The chisel bit is made from grade hard alloy and special steel, generally matched with the light-duty rock drill, to drill the rock hole within diameter of 50mm.
It is widely used in metallurgy mine, geological exploration, water conservancy construction, electricity, traffic, tunnel, quarry, national defence stone project etc,.


Drill Type
Bit diamater   (D)
Taper
Whter hole
(d)
mm
Part on
mm
in
Chisel Type Bits
30
1   3/16"
7°
2
22
Y130-722
32
1 17/64"
7°
2
22
Y132-722
34
1 11/32"
7°
2
22
Y134-722
36
1 27/64"
7°
2
22
Y136-722
38
 1   1/2"     
7°
2
22
Y138-722
40
 1  37/64"
7°
2
22
Y140-722
42
1 21/32"
7°
2
22
Y142-722
43
1 11/16"
7°
2
22
Y143-722
44
1 47/64"
7°
2
22
Y144-722
46
1 13/16"
7°
2
22
Y146-722












  
   
Chisel Bit - F   with 25mm taper.

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