Specifically designed for machining stainless steel materials without the need for a centring drill process, allowing direct drilling. The special helical cutting edge and large helix angle provide great rigidity and strength, the thin core greatly reduces drag, lowers drilling temperatures and extends tool life, coatings are available on request. The drill should have high hardness, good surface finish, and the top angle of the drill should be larger than ordinary drill with interiol coolant.

The carbide drill bit set is meticulously engineered for precision machining of stainless steel, offering exceptional rigidity and extended tool life with customizable coatings.
Engineering Data
special chip flute geometry
special point ground for machining of stainless steel
30° RH helix
| d1 | d2 | |||
| (m7) | L3 | L2 | L1 | (h6) |
| mm | mm | mm | mm | mm |
| 3 | 23 | 28 | 66 | 6 |
| 3.1 | 23 | 28 | 66 | 6 |
| 3.2 | 23 | 28 | 66 | 6 |
| 3.3 | 23 | 28 | 66 | 6 |
| 3.4 | 23 | 28 | 66 | 6 |
| 3.5 | 23 | 28 | 66 | 6 |
| 3.6 | 23 | 28 | 66 | 6 |
| 3.7 | 23 | 28 | 66 | 6 |
| 3.8 | 29 | 36 | 74 | 6 |
| 3.9 | 29 | 36 | 74 | 6 |
| 4 | 29 | 36 | 74 | 6 |
| 4.1 | 29 | 36 | 74 | 6 |
| 4.2 | 29 | 36 | 74 | 6 |
| 4.3 | 29 | 36 | 74 | 6 |
| 4.4 | 29 | 36 | 74 | 6 |
| 4.5 | 29 | 36 | 74 | 6 |
| 4.6 | 29 | 36 | 74 | 6 |
| 4.7 | 29 | 36 | 74 | 6 |
| 4.8 | 35 | 44 | 82 | 6 |
| 4.9 | 35 | 44 | 82 | 6 |
| 5 | 35 | 44 | 82 | 6 |
| 5 | 35 | 44 | 82 | 6 |
| 5.1 | 35 | 44 | 82 | 6 |
| 5.3 | 35 | 44 | 82 | 6 |
| 5.4 | 35 | 44 | 82 | 6 |
| 5.5 | 35 | 44 | 82 | 6 |
| 5.6 | 35 | 44 | 82 | 6 |
| 5.7 | 35 | 44 | 82 | 6 |
| 5.8 | 35 | 44 | 82 | 6 |
| 5.9 | 35 | 44 | 82 | 6 |
| 6 | 35 | 44 | 82 | 6 |
| 6.1 | 43 | 53 | 91 | 8 |
| 6.2 | 43 | 53 | 91 | 8 |
| 6.3 | 43 | 53 | 91 | 8 |
| 6.4 | 43 | 53 | 91 | 8 |
| 6.5 | 43 | 53 | 91 | 8 |
| 6.6 | 43 | 53 | 91 | 8 |
| 6.7 | 43 | 53 | 91 | 8 |
| 6.8 | 43 | 53 | 91 | 8 |
| 6.9 | 43 | 53 | 91 | 8 |
| 7 | 43 | 53 | 91 | 8 |
| 7.1 | 43 | 53 | 91 | 8 |
| 7.2 | 43 | 53 | 91 | 8 |
| 7 | 43 | 53 | 91 | 8 |
| 7.4 | 43 | 53 | 91 | 8 |
| 7.5 | 43 | 53 | 91 | 8 |
| 7.6 | 43 | 53 | 91 | 8 |
| 7.7 | 43 | 53 | 91 | 8 |
| 7.8 | 43 | 53 | 91 | 8 |
| 7.9 | 43 | 53 | 91 | 8 |
| 8 | 43 | 53 | 91 | 8 |
| 8.1 | 49 | 61 | 103 | 10 |
| d1 | cd2 | |||
| (m7) | L3 | L2 | L1 | (h6) |
| mm | mm | mm | mm | mm |
| 8.2 | 49 | 61 | 103 | 10 |
| 8.3 | 49 | 61 | 103 | 10 |
| 8.4 | 49 | 61 | 103 | 10 |
| 8.5 | 49 | 61 | 103 | 10 |
| 8.6 | 49 | 61 | 103 | 10 |
| 8.7 | 49 | 61 | 103 | 10 |
| 8.8 | 49 | 61 | 103 | 10 |
| 8.9 | 49 | 61 | 103 | 10 |
| 9 | 49 | 61 | 103 | 10 |
| 9 | 49 | 61 | 103 | 10 |
| 9.2 | 49 | 61 | 103 | 10 |
| 9.3 | 49 | 61 | 103 | 10 |
| 9.4 | 49 | 61 | 103 | 10 |
| 9.5 | 49 | 61 | 103 | 10 |
| 9.6 | 49 | 61 | 103 | 10 |
| 9.7 | 49 | 61 | 103 | 10 |
| 9.8 | 49 | 61 | 103 | 10 |
| 9.9 | 49 | 61 | 103 | 10 |
| 10 | 49 | 61 | 103 | 10 |
| 10.1 | 56 | 61 | 118 | 12 |
| 10.2 | 56 | 61 | 18 | 12 |
| 10.3 | 56 | 71 | 18 | 12 |
| 10.4 | 56 | 71 | 118 | 12 |
| 10.5 | 56 | 71 | 118 | 12 |
| 10.6 | 56 | 71 | 18 | 12 |
| 10.7 | 56 | 71 | 18 | 12 |
| 10.8 | 56 | 71 | 118 | 12 |
| 10.9 | 56 | 71 | 118 | 12 |
| 11 | 56 | 71 | 118 | 12 |
| 11.1 | 56 | 71 | 118 | 12 |
| 11.2 | 56 | 71 | 118 | 12 |
| 11.3 | 56 | 71 | 118 | 12 |
| 11.4 | 56 | 71 | 118 | 12 |
| 11.5 | 56 | 71 | 118 | 12 |
| 11.6 | 56 | 71 | 118 | 12 |
| 11.7 | 56 | 71 | 118 | 12 |
| 11.8 | 56 | 71 | 18 | 2 |
| 11.9 | 56 | 71 | 118 | 12 |
| 12 | 56 | 71 | 118 | 12 |
| 12.5 | 60 | 77 | 124 | 14 |
| 12.8 | 60 | 77 | 124 | 14 |
| 13 | 60 | 77 | 124 | 14 |
| 13.5 | 60 | 77 | 124 | 14 |
| 13.8 | 60 | 77 | 124 | 14 |
| 14 | 60 | 77 | 124 | 14 |
| 14.5 | 63 | 83 | 133 | 16 |
| 14.8 | 63 | 83 | 133 | 16 |
| 15 | 63 | 83 | 133 | 16 |
| 15.5 | 63 | 83 | 133 | 16 |
| 15.8 | 63 | 83 | 133 | 16 |
| 16 | 63 | 83 | 133 | 16 |
Solid carbite spirel drill for staintess steel
Engineering Data
special chip flute geometry
special point ground for machining of stainless steel
30° RH helix

| d1 | d2 | |||
| (m7) | L3 | L2 | L1 | (h6) |
| mm | mm | mm | mm | mm |
| 3 | 29 | 34 | 72 | 6 |
| 3.1 | 29 | 34 | 72 | 6 |
| 3.2 | 29 | 34 | 72 | 6 |
| 3.3 | 29 | 34 | 72 | 6 |
| 3.4 | 29 | 34 | 72 | 6 |
| 3.5 | 29 | 34 | 72 | 6 |
| 3.6 | 29 | 34 | 72 | 6 |
| 3.7 | 29 | 34 | 72 | 6 |
| 3.8 | 36 | 43 | 81 | 6 |
| 3.9 | 36 | 43 | 81 | 6 |
| 4 | 36 | 43 | 81 | 6 |
| 4.1 | 36 | 43 | 81 | 6 |
| 4 | 36 | 43 | 81 | 6 |
| 4.3 | 36 | 43 | 81 | 6 |
| 4.4 | 36 | 43 | 81 | 6 |
| 4.5 | 36 | 43 | 81 | 6 |
| 4.6 | 36 | 43 | 81 | 6 |
| 4.7 | 36 | 43 | 81 | 6 |
| 4.8 | 48 | 57 | 95 | 6 |
| 4.9 | 48 | 57 | 95 | 6 |
| 5 | 48 | 57 | 95 | 6 |
| 5.1 | 48 | 57 | 95 | 6 |
| 5.1 | 48 | 57 | 95 | 6 |
| 5.3 | 48 | 57 | 95 | 6 |
| 5.4 | 48 | 57 | 95 | 6 |
| 5.5 | 48 | 57 | 95 | 6 |
| 5.6 | 48 | 57 | 95 | 6 |
| 5.7 | 48 | 57 | 95 | 6 |
| 5.8 | 48 | 57 | 95 | 6 |
| 5.9 | 48 | 57 | 95 | 6 |
| 6 | 48 | 57 | 95 | 6 |
| 6 | 64 | 76 | 114 | 8 |
| 6.2 | 64 | 76 | 114 | 8 |
| 6 | 64 | 76 | 114 | 8 |
| 6.4 | 64 | 76 | 114 | 8 |
| 6.5 | 64 | 76 | 114 | 8 |
| 6.6 | 64 | 76 | 114 | 8 |
| 6.7 | 64 | 76 | 114 | 8 |
| 6.8 | 64 | 76 | 114 | 8 |
| 6.9 | 64 | 76 | 114 | 8 |
| 7 | 64 | 76 | 114 | 8 |
| 7.1 | 64 | 76 | 114 | 8 |
| 7.2 | 64 | 76 | 114 | 8 |
| 7.3 | 64 | 76 | 114 | 8 |
| 7.4 | 64 | 76 | 114 | 8 |
| 7.5 | 64 | 76 | 114 | 8 |
| 7.6 | 64 | 76 | 114 | 8 |
| 7.7 | 64 | 76 | 114 | 8 |
| 7.8 | 64 | 76 | 114 | 8 |
| 7.9 | 64 | 76 | 114 | 8 |
| 8 | 64 | 76 | 114 | 8 |
| 8.1 | 80 | 95 | 142 | 10 |
| d1 | d2 | |||
| (m7) | L3 | L2 | L1 | (h6) |
| mm | mm | mm | mm | mm |
| 8.2 | 80 | 95 | 142 | 10 |
| 8 | 80 | 95 | 142 | 10 |
| 8.4 | 80 | 95 | 142 | 10 |
| 8.5 | 80 | 95 | 142 | 10 |
| 8.6 | 80 | 95 | 142 | 10 |
| 8.7 | 80 | 95 | 142 | 10 |
| 8.8 | 80 | 95 | 142 | 10 |
| 8.9 | 80 | 95 | 142 | 10 |
| 9 | 80 | 95 | 142 | 10 |
| 9.1 | 80 | 95 | 142 | 10 |
| 9.2 | 80 | 95 | 142 | 10 |
| 9.3 | 80 | 95 | 142 | 10 |
| 9.4 | 80 | 95 | 142 | 10 |
| 9.5 | 80 | 95 | 142 | 10 |
| 9.6 | 80 | 95 | 142 | |
| 9.7 | 80 | 95 | 142 | 10 |
| 9.8 | 80 | 95 | 142 | 10 |
| 9.9 | 80 | 95 | 142 | 10 |
| 10 | 80 | 95 | 142 | 10 |
| 10 | 96 | 114 | 162 | 12 |
| 10.2 | 96 | 114 | 162 | 12 |
| 10.2 | 96 | 114 | 162 | 12 |
| 10.4 | 96 | 114 | 162 | 12 |
| 10.5 | 96 | 114 | 162 | 12 |
| 10.6 | 96 | 114 | 162 | 12 |
| 10.7 | 96 | 114 | 162 | 12 |
| 10.8 | 96 | 114 | 162 | 12 |
| 10.9 | 96 | 114 | 162 | 12 |
| 11 | 96 | 114 | 162 | 12 |
| 11.1 | 96 | 114 | 162 | 12 |
| 11.2 | 96 | 114 | 62 | 12 |
| 11.3 | 96 | 114 | 62 | 12 |
| 11.4 | 96 | 114 | 162 | 12 |
| 11.5 | 96 | 114 | 162 | 12 |
| 11.6 | 96 | 114 | 162 | 12 |
| 11.7 | 96 | 114 | 162 | 12 |
| 11 8 | 96 | 114 | 162 | 12 |
| 11.9 | 96 | 114 | 162 | 12 |
| 12 | 96 | 114 | 162 | 12 |
| 12.5 | 12 | 131 | 178 | 14 |
| 12.8 | 112 | 131 | 178 | 14 |
| 13 | 112 | 131 | 178 | 14 |
| 13.5 | 112 | 131 | 178 | 14 |
| 13.8 | 112 | 131 | 178 | 14 |
| 14 | 12 | 131 | 178 | 14 |
| 14.5 | 28 | 152 | 203 | 16 |
| 14.8 | 128 | 152 | 203 | 16 |
| 15 | 128 | 152 | 203 | 16 |
| 15.5 | 128 | 152 | 203 | 16 |
| 15.8 | 128 | 152 | 203 | 16 |
| 16 | 128 | 152 | 203 | 16 |