Chisel Type Bit
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The drilling efficiency of chisel type bit drill bit is better than that of carbide cross cut thread bits, usually pairing well with B22 drilling rods and rock drills. The reaming bit has the advantages of simple manufacture technology, low-cost, easy use, and is suitable for various types of rocks. These bits are commonly used in various fields such as mines, tunneling and construction-building projects.
Features:
- The bit body is composed of high-intensity tool steel with strict heat treatment, which has high strength, avoiding snapping when drilling.
- The reaming bits are of complete types, which can satisfy the rock extraction with different hardness.
Parameters:
Straight horseshoe bits
| Part NO. | Bit diameter | Taper | |
| mm | in | ||
| Y132-722 | 32 | 1-1/4 | 7° |
| Y134-722 | 34 | 1-11/32 | 7° |
| Y136-722 | 36 | 1-27/64 | 7° |
| Y138-722 | 38 | 1-1/2 | 7° |
| Y140-722 (724) | 40 | 1-37/64 | 7° |
| Y142-722 (724) | 42 | 1-21/32 | 7° |
| Y144-722 (724) | 44 | 1-47/64 | 7° |
| Y146-722 (724) | 46 | 1-13/16 | 7° |
Normal Chisel Bits
| Part NO. | Bit diameter | Taper | |
| mm | in | ||
| Y126 - 722 | 26 | 1–1/16 | 7º |
| Y128 - 722 | 28 | 1-1/8 | 7º |
| Y132 - 722 | 32 | 1--1/4 | 7º |
| Y134- -722 | 34 | 1-11/32 | 7º |
| Y136 - 722 | 36 | 1-27/64 | 7º |
| Y138 - 722 | 38 | 1-1/2 | 7º |
| Y140 – 722（724） | 40 | 1-37/64 | 7º |
| Y142 – 722 (724) | 42 | 1-21/32 | 7º |
| Y144 – 722 (724) | 44 | 1-47/64 | 7º |
| Y146 – 722 (724) | 46 | 1-13/16 | 7º |
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