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TTP HARD-DRILL Bits - Stainless Steel Drilling Video

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TTP Hard Drill Bits an easier way to drill stainless steel and harder alloys

TTP cobalt HARD DRILLS are designed to drill through the toughest and hard, abrasive materials they are ideal to use to drill into stainless, steel, titanium, cast iron, spot welds, leaf springs. For more information please contact Tough Technology Products -

Drilling hardend steels - Drilling Stainless Steel

How to drill Stainless steel video
Stainless steel, high hardness - how easily can it be drilled with a hand power drill and a TTP Hard Drill Bit?

The work hardening effect when drilling stainless steel is the main cause of problems. Centre punching with conventional conical shaped punches can result in enough localized work hardening to make drill entry difficult. This can make the drill tip deflect or wander, glaze the surface and/or blunt the drill tip and result in drill breakages, particularly where small diameter holes are being drilled. During drilling it is essential to maintain the feed to cut through the work hardened layer generated as the metal is cut.

Drill slowly and allow the bit to do the work. If you apply too much pressure, friction will cause your drill bit to redden with heat which in turn will blacken the stainless steel. The same will happen if you engage the drill to its full speed. The trick here is to find a happy medium, that "sweet spot" at which the drill, the bit and the metal cooperate fully.

TTP Hard Drill bits drill stainless steel, chrome, harden steel and harder alloys

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Users comments

"They really are mint, they really are."
Jim @ Arnold Plant UK --

Designed and developed from feed back from engineers in workshops TTP Hard Drills harder metals where a normal HSS drill bit can not come close....