Step drills 4 to 20 mm, 2 mm steps

The Milwaukee Step Drill Bit 4-20 mm (1 pc), model number 48899320, is engineered for multi-size drilling in sheet metal, pipes, plastics, and other materials. With its step geometry, this bit allows you to drill multiple diameters using a single tool. The robust design and features make it suitable for professionals seeking versatility, precision, and durability in one drill bit.

Features & Specifications

• Single piece step drill covering sizes from 4 mm to 20 mm

• 9 steps (increments)

• Constructed from high-speed steel

• Black oxide coating for corrosion resistance

• Rapid Strike tip to reduce walking and help start holes accurately

• Laser-etched markings for easy hole size identification

• 3-flat shank (Secure-Grip) to prevent slipping in the chuck

• Suitable for ferrous and non-ferrous sheet metals, copper, brass, aluminum, stainless steel, plastics

• Maximum material thickness: ~4 mm

• Designed for both manual drills and impact drivers