IRWIN� IW4041010 Blue Groove 4X Flat Bit Set, 8 Piece Underfloor Heating Comes with a dynamic drive

Comes with a dynamic drive profile and a quick release ratchet

Stahlwille 416QR Flexible Head 1/4in Drive Ratchet has an 80-tooth

Edge hardness approximately 62 HRc

easy-to-read LED status lights and LED scrolling digital messaging display screen gives step-by-step instructions

IRWIN� IW4041010 Blue Groove 4X Flat Bit Set, 8 Piece Underfloor Heating Comes with a dynamic driveThe IRWIN Blue Groove 4X Flat Bits have a patented groove point and cutting edge, designed to cut and not scrape the timber. They are 4 times faster than standard flat bits. The parabolic scoop optimises control and removal of wood chips. Increased relief angle from 12 to 17. The shank is 152mm in length and 10% larger in diameter for added durability. This IRWIN Blue Groove 4X Flat Bit Set is supplied in a hard, case. Contains the following: Sizes