The metropolis 48-89-2732 13/32 in. Thunderbolt Black chemical compound drilling bit options a thick core for cover against side-load breakage. The black chemical compound construction is sturdy, and this bit is superb for drilling on flexuous surfaces. The parabolic flute kind helps clear chips and detritus to stay the bit cool, and this bit is suggested to be used with moveable drills.
Thunderbolt net, provides longer life and quicker driller times
Parabolic flute, clears chips quicker
Black chemical compound construction for sturdiness
135?? split purpose, exactness begin no walking