RS PRO 3-Piece Step Drill Bit Set for Metal, 30mm Max, 4mm Min, HSS Bits

Supplied individually and as a 3 piece set
Designed for cutting ISO hole sizes in materials with a thickness of up to 3mm
Suitable for use with industrial power drills, bench or pedestal drills

RS PRO offers this exceptional step drill bit set made from HSS for high-performance, offering a range of hole diameters, giving you maximum versatility. Capable of cutting holes from 6 mm to 40 mm through three different step drill bits. These High-Speed Steel (HSS) cutters are constructed from a single piece of high-speed steel, thus reducing breaking and blunting under heat or stress. The stepped tapered design makes it easier to enlarge holes if requirements change for example.

HSS Step drill bits can be are suitable for use on steel sheets and non-ferrous metals, which include aluminium, copper, brass, zinc and iron. It can be used for drilling applications involving plastic and wood.

Provides clear holes in applications requring small hole size increments

No pilot hole required easily enlarges existing holes

Capable of cutting holes from 4 mm to 30 mm diameters

Ideal for use with most power drills

Supplied in a moulded Metal box

A. A cone cutter is a smooth sided bit that can make any sized hole, on a variety of materials.

A step cutter has parallel measurements up the cone, gradually getting bigger. These are great if you need to cut sized holes with reasonable accuracy. These bits are also capable of cutting through various materials.