Steel Bit - 10pcs (3mm) pkt

A packet of ten 3mm twist drill bits for steel. Buying this size by the packet rather than singly is not indulgence, it is arithmetic: fine bits snap, and they snap without warning when the drill tips slightly, when the work moves, or when the tip catches as it breaks through the far side. A workshop that keeps one 3mm bit stops work the moment it goes. Three millimetres is the pilot-hole and small-fixing size - starting a hole so a larger bit runs true, drilling thin sheet, rivet holes, brackets, name plates and enclosures. Drill with the hammer action off, run slower than feels right, and ease the pressure as the bit comes through. A packet in the drawer means the next break costs a minute rather than a trip.