Speed Feed self-feeding wood bits are made for drilling fast holes in clean wood

The double wing spurs cut clean holes for feeding wire or bolts through, and the feed screw and dual cutting edges provide up to 10 times faster drilling flat boring bits

Flutes are coated for fast chip removal

1/4" power groove shank fits all 1/4" extensions

Set includes 1 each 1/2", 5/8", 3/4", and 1" Speed Feed wood bits