New. Pure m42, 8% Cobalt. Unlike titanium coated tips, these bits when dull and resharpened remain m42, 8% Cobalt. If you are dealing with broken grade 8 bolts or stainless steel. These are time savers. It only hurt$ once. Buy a set of these and a drill doctor to repoint the 135 degree tip. Get her done and get on to the next job. Time is money.

　　Stock # DBTBC129

　　Name THUNDERBIT Cobalt Drill Bit Set

　　Price** $379.00

　　Brand Snap-on

　　Country Of Origin USA

　　For drilling at higher speeds in tougher drilling conditions. They feature 135 split points for easier drill starting without the need for center punching, heavy duty web construction for higher strength and lower breakage, and improved chip ejection through a specially engineered flute design.