Cone Drill Bits – Taper Drills for Sheet Metal (3–30mm)

Cone drill bits (taper drills) drill and open out holes in sheet metal and plastic — a smooth conical bit that cuts any diameter across its range as you push it deeper, and deburrs the edge at the same time.

How they work
The tapered cone starts its own hole and enlarges it to the size you need, no pilot required.

Ranges
Three bits cover 3–14mm, 8–20mm and 16–30mm, with 6mm, 8mm and 9mm shanks.

Uses
Opening and enlarging holes in thin sheet steel, aluminium, brass, plastic and laminate — electrical panels, trunking and enclosures.

For precise, set diameters in steps, see our step drill bits.

Choose your bit above — sold singly.

Also known as taper drills, cone cutters, conecut drills or sheet metal cone bits.