产品描述：
Irwin Blue Groove Flat Bit Set - 8 Piece
Introducing the new, patented Blue Groove 4X flat bit and Blue Groove 6X wood boring bit. It?s cutting edge technology incorporates true ?cutting edges? that glide through the wood versus scraping its way through. Professionals can now improve their productivity and accuracy with Irwin?s new innovative Blue Groove flat bits.
Overall length: 157mm.
Set contents: 12, 16, 18, 20, 22, 25, 28 and 32mm.