China DIN1897 Stub Drill Bit, Find details about China Drill Bit, Twist Drills from DIN1897 Stub Drill Bit
Manufacturing process: rolled, milled or fully ground | |
Material: HSS (HSS-Co are available) | |
| Point angle: 118°or 135º split point Flute type: N, parabolic flute | |
| Finish: black oxide, bright, polished, or Ti-coated | |
| Diameter: 1-20mm |
D | L2 | L1 | D | L2 | L1 | D | L2 | L1 |
| 1 | 6 | 26 | 7.5 | 34 | 74 | 14 | 54 | 107 |
| 1.2 | 8 | 30 | 7.8 | 37 | 79 | 14.25 | 56 | 111 |
| 1.5 | 9 | 32 | 8 | 37 | 79 | 14.5 | 56 | 111 |
| 1.8 | 11 | 36 | 8.2 | 37 | 79 | 14.75 | 56 | 111 |
| 2 | 12 | 38 | 8.5 | 37 | 79 | 15 | 56 | 111 |
| 2.2 | 13 | 40 | 8.8 | 40 | 84 | 15.25 | 58 | 116 |
| 2.5 | 14 | 43 | 9 | 40 | 84 | 15.5 | 58 | 116 |
| 2.8 | 16 | 46 | 9.2 | 40 | 84 | 15.75 | 58 | 116 |
| 3 | 16 | 46 | 9.5 | 40 | 84 | 16 | 58 | 116 |
| 3.2 | 18 | 49 | 9.8 | 43 | 89 | 16.25 | 60 | 119 |
| 3.5 | 20 | 52 | 10 | 43 | 89 | 16.5 | 60 | 119 |
| 3.8 | 22 | 55 | 10.2 | 43 | 89 | 16.75 | 60 | 119 |
| 4 | 22 | 55 | 10.5 | 43 | 89 | 17 | 60 | 119 |
| 4.2 | 22 | 55 | 10.8 | 47 | 95 | 17.25 | 62 | 123 |
| 4.5 | 24 | 58 | 11 | 47 | 95 | 17.5 | 62 | 123 |
| 4.8 | 26 | 62 | 11.2 | 47 | 95 | 17.75 | 62 | 123 |
| 5 | 26 | 62 | 11.5 | 47 | 95 | 18 | 62 | 123 |
| 5.2 | 26 | 62 | 11.8 | 47 | 95 | 18.25 | 64 | 127 |
| 5.5 | 28 | 66 | 12 | 51 | 102 | 18.5 | 64 | 127 |
| 5.8 | 28 | 66 | 12.2 | 51 | 102 | 18.75 | 64 | 127 |
| 6 | 28 | 66 | 12.5 | 51 | 102 | 19 | 64 | 127 |
| 6.2 | 31 | 70 | 12.8 | 51 | 102 | 19.25 | 66 | 131 |
| 6.5 | 31 | 70 | 13 | 51 | 102 | 19.5 | 66 | 131 |
| 6.8 | 34 | 74 | 13.2 | 51 | 102 | 19.75 | 66 | 131 |
| 7 | 34 | 74 | 13.5 | 54 | 107 | 20 | 66 | 131 |
| 7.2 | 34 | 74 | 13.8 | 54 | 107 |