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Hand drilling stainless steel 3mm thick
| S.D.L. | 10/11/2020 18:35:24 |
| 236 forum posts 37 photos | Its Hard work but not this hard.
Need an old fashioned corded drill with two speed gear box. trigger control helps more. use good drills Dormer A002 work well, they are like a split point multi facet, use cutting fluid like Rocol or CT90. I was doing M10 Tapping size in 316L 10mm thick. 4 holes per plate 8 Plates, took an afternoon to drill and tap, used two sizes of drill 5 mm and tapping size. Hard work but keep the pressure on and change the bit as soon as it starts to rub. Steve
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| Bryan Cedar 1 | 14/11/2020 16:54:59 |
| 127 forum posts 4 photos | Glad to report that my efforts at drilling in 3mm stainless of unknown grade have paid off. I ordered a carbide tipped drill, the sort used to drill locks. It did cut but very slowly and produced fine grains of swarf. Changed over to a 5% cobalt drill from Arc Euro and the difference was amazing the swarf being long strands of swarf. Job done. Thanks everybody for the suggestions. |
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