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1.Used for drilling in various kinds of steel concrete as well as in brick wall.
2.Adopting high-frequency welding and whole hot-press techniques; segment is firmly connected ,not easy to lose teeth.
3.Adopting laser welding technique;segment is firmly connected,not easy to lose teeth.
4.Operated with water for various types of engineering drill.Best for platform drill.
5.Drills perfect holes in block;brick, concrete and other materials without spilling
6.Brazed welded
7.Tube length from350mm to 450mm,please specify when ordering.
8.Segment on the core bits can be crown or split segment(Normal Type, Turbo Type,Roof Type)
9. We can customized according to your request .
Diameter | Length | Segment Height | Segment Thickness | Segment No | |
inch | mm | ||||
7/8” | 22 | 350(450) | 8/10 | 3.5 | 3 |
1” | 25 | 350(450) | 8/10 | 3.5 | 3 |
1-1/8” | 27 | 350(450) | 8/10 | 3.5 | 3 |
1-1/5” | 30 | 350(450) | 8/10 | 3.5 | 4 |
1-1/4” | 32 | 350(450) | 8/10 | 3.5 | 4 |
1-1/8” | 34 | 350(450) | 8/10 | 3.5 | 4 |
1-2/5” | 36 | 350(450) | 8/10 | 3.5 | 4 |
1-1/2” | 38 | 350(450) | 8/10 | 3.5 | 4 |
1-5/8” | 40 | 350(450) | 8/10 | 3.5 | 4 |
1-3/4” | 44 | 350(450) | 8/10 | 3.5 | 4 |
1-4/5” | 46 | 350(450) | 8/10 | 3.5 | 4 |
2” | 51 | 350(450) | 8/10 | 3.5 | 5 |
2-1/5” | 56 | 350(450) | 8/10 | 3.5 | 5 |
2-1/2” | 63 | 350(450) | 8/10 | 3.5 | 6 |
2-3/5” | 66 | 350(450) | 8/10 | 3.5 | 6 |
2-3/4” | 71 | 350(450) | 8/10 | 3.5 | 6 |
3” | 76 | 350(450) | 8/10 | 3.5 | 7 |
3-1/4” | 83 | 350(450) | 8/10 | 3.7 | 7 |
3-1/2” | 89 | 350(450) | 8/10 | 3.7 | 8 |
3-4/5” | 96 | 350(450) | 8/10 | 3.7 | 8 |
4” | 102 | 350(450) | 8/10 | 3.7 | 9 |
4-1/4” | 108 | 350(450) | 8/10 | 4 | 9 |
4-1/2” | 114 | 350(450) | 8/10 | 4 | 10 |
4-3/4” | 120 | 350(450) | 8/10 | 4 | 10 |
5” | 125 | 350(450) | 8/10 | 4 | 11 |
5-1/4” | 132 | 350(450) | 8/10 | 4.5 | 11 |
5-1/2” | 140 | 350(450) | 8/10 | 4.5 | 11 |
6” | 152 | 350(450) | 8/10 | 4.5 | 11 |
6-1/4” | 160 | 350(450) | 8/10 | 4.5 | 12 |
6-5/8” | 168 | 350(450) | 8/10 | 4.5 | 13 |
7” | 180 | 350(450) | 8/10 | 4.5 | 13 |
8” | 200 | 350(450) | 8/10 | 4.5 | 15 |
9-5/8” | 245 | 350(450) | 8/10 | 4.5 | 16 |
12” | 300 | 350(450) | 8/10 | 5 | 20 |
Diamond Rock Drill Bits Masonry Tools Large Drill Bit Set