Sheffield 9STM4-20 Alpha Series Step Drill, Straight Flute, 4-20mm, 9 Steps, TiN Coated, HSS M2, 3 Flats Shank, Non-Ferrous/Sheet Steel/Plastic, Gold Finish

The Sheffield Straight Flute Step Drill, sized from 4mm to 20mm, is an essential tool for precision drilling in various materials. Designed for use with non-hammer action portable power drills, this step drill features a self-starting split point that eliminates the need for a pilot hole, ensuring efficient and accurate drilling. With a cutting depth of up to 3mm and nine distinct step sizes, it is ideal for working with non-ferrous metals, sheet steel, plastic, and stainless steel up to 3mm thick.Constructed from premium M2 high-speed steel and finished with a titanium nitride (TiN) coating, this drill reduces heat build-up and enhances lubricity for extended tool life. The two-flute design allows for smooth cutting, while the shank features three flats to prevent slippage in the chuck. Each drill is conveniently packaged in a bulk plastic pack, making it easy to store and transport.

Features:
• Self-starting split point eliminates the need for a pilot hole
• Two flute design ensures smooth cutting performance
• TiN coating reduces heat and enhances lubricity for longer tool life
• Laser etched hole markings for easy size identification
• Constructed from premium M2 high speed steel for durability
• Three flats on the shank prevent slippage in the chuck
• Compatible with non-hammer action portable power drills
• Step sizes range from 4mm to 20mm for versatile applications
• Cutting depth capability of up to 3mm for various materials