A 17-piece set of Irwin Blue Groove 4X flat wood bits covering the sizes you actually use on first and second fix: from 6mm pilot holes up to 32mm for waste pipes and cable runs. The 4X designation refers to the four-flute cutting head with a Blue Groove tip, which pulls through the timber faster than standard spade bits and leaves a cleaner hole.

The hex shank fits directly into impact drivers and SDS chuck adapters as well as standard drill chucks. Supplied in a fabric roll that keeps the sizes visible and organised.

Features

• Four-flute cutting head bores faster with less effort than standard spade bits
• Blue Groove screw-point tip pulls the bit into the timber, no forcing required
• Hex shank fits drill chucks and impact drivers
• Fabric roll keeps all 17 sizes organised and accessible

Specifications

• Sizes included: 6, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 22, 24, 25, 28, 32mm
• Shank: Hex
• Piece count: 17