SUTTON TOOLS D504-Series Step Drills are an industrial quality solution for users wanting to incrementally increase holes in a controlled manner. They are ideal for use in sheet metal, without the need for pre-driling.
They are suitable for use in sheet metal, aluminium, plastics and fibreglass.
During the drilling process, the next step deburrs the previously drilled hole.
Features

Fixed Drilling Steps – Incrementally increases hole size in a controlled manner
Spiral Flute – For reduced vibration and greater control through steps
Flat Shank – Three flats suits 3-jaw chuck
Made from M2 High Speed Steel (HSS) – Offering the best combination of strength, heat & wear resistance
Bright Finish – For general purpose applications, non-ferrous metals & plastics

Specifications

Steps: 13-Step
Diameters: 5-35 mm

5 mm
7.5 mm
10 mm
13 mm
16 mm
19 mm
21 mm
23 mm
26 mm
29 mm
31 mm
33 mm
35 mm

Cylindrical Flatted