China BTA Drill Head Deep Hole Drilling BTA Drill Cutting Tool, Find details about China Single Tube BTA, BTA Drill from BTA Drill Head Deep Hole Drilling BTA Drill Cutting Tool
Specification:
Bit specification bit specification | drill tube size | Bit specification bit specification | drill tube size |
17.8-19.5 | 16 | 43 45 47 | 40 |
19.51-21.99 | 17.5 | 48 50 52 | 43 |
22-24.99 | 20 | 55 | 48 |
25-26.99 | 23 | 57 58 60 | 52 |
27-29.99 | 25 | 62 63 65 | 56 |
30-31.99 | 27 | 68 70 72 | 61 |
34.5-35 | 30 | 75 | 65 |
38-42 | 35 | 80 | 70 |