The Irwin Blue Groove 4X Flat Bit Set (6 Piece) delivers high-speed, precision drilling across a range of wood types. Featuring patented Blue Groove cutting geometry and self-feeding screw tips, each bit in the set powers through timber up to 4x faster than standard spade bits. With sizes from 16mm to 32mm, this compact kit is ideal for electricians, joiners, and general contractors needing clean, accurate holes in confined or open site conditions. Supplied in a durable case for easy transport and quick bit selection.

16mm, 18mm, 20mm, 22mm, 25mm, 32mm
All bits feature a 152mm overall length and hex shank for secure grip.