3-Piece HSS Step Drill Bit Set 3-12mm, 4-12mm, 4-20mm with Nitride Black Finish

This set of three high-speed steel step drill bits covers sizes from 3mm to 20mm in one kit. It drills and reams clean holes in wood, aluminum, plastic board and insulating board, making it a versatile choice for DIY and workshop jobs.

Features

• Hard, wear-resistant high-speed steel construction
• Nitride black coating for better resistance to wear
• Two straight grooves for faster, smoother and cleaner cutting
• Each step is clearly marked with its diameter
• Hex shank design helps prevent slipping in the chuck

Specifications

• Material: High-speed steel
• Color: Black
• Sizes: 3-12mm, 4-12mm, 4-20mm
• Suitable material thickness: Up to about 5mm

What's Included

3 HSS straight groove step drill bits.

Note: Measurements may vary slightly, and colors may look different on some screens.