United Tools 3 Piece HSS Step Drill Bit Set 4-32mm | Metal, Wood & Plastic

The United Tools 3 Piece Step Drill Bit Set is designed for fast, accurate drilling and hole enlargement across a wide range of materials. Manufactured from high-speed steel (HSS), these drill bits provide excellent durability, heat resistance and cutting performance, making them ideal for both professional tradespeople and DIY users.

Suitable for drilling in aluminium, brass, copper, plastic, steel and wood, the precision-ground step design creates clean, accurate holes without the need for multiple drill bits. Perfect for electrical work, sheet metal fabrication, automotive repairs and general workshop applications.

Supplied as a three-piece set, the range of sizes covers everything from small pilot holes through to larger diameter openings.

Features

• 3-piece HSS step drill bit set
• Manufactured from high-speed steel (HSS)
• Precision-ground cutting edges for smooth, accurate drilling
• Ideal for drilling and enlarging holes
• Suitable for aluminium, brass, copper, plastic, steel and wood
• Excellent durability and long service life
• Suitable for professional and DIY use

Sizes Included

• 15-Step Bit: 4-32mm
• 9-Step Bit: 4-20mm
• 5-Step Bit: 4-12mm

Ideal For

• Sheet metal work
• Electrical installations
• Automotive repairs
• Engineering and fabrication
• General workshop use
• DIY projects

Whether you're enlarging existing holes or drilling new ones, the United Tools 3 Piece HSS Step Drill Bit Set delivers clean, precise results with the strength and durability needed for everyday professional use.