Makita 4-20mm Chrome Vanadium Cone Drill Bit D-40397
Features:
Designed to gradually enlarge holes without the step process to the required diameter
Deburring existing holes and countersinking
Material - HSS
Shank - Three flat 8 mm straight shank
Specifications:
Hole Capacity 4-20 mm
Overall Length 71 mm
Speed 400 - 960 rpm