DART 3 Piece Spiral Flute Step Drill Set (D)

Precision engineered steel bits with slanting tapered cutting edges allowing for de-burring or chamfering of the hole drilled. HSS Ground flute with split point for spot drilling without pre-centring. Suitable for use on sheet metal, stainless steel, steel, cast iron, aluminium, non-ferrous metals and plastic. Set contains 4-12, 4-20, 4-30mm bits