1/4" hex shank fits into all power tools more easily and securely, especially for locking into quick change chuck, eliminating the risk of the shank spinning in the chuck.
135° split point geometry ensures an accurate start and reduces sliping on the working surface. 
Sprial flutes design clear chips effectively, decreasing friction and heat for a faster, cooler drilling process.
Include 2pc masonry drill bits

Set includes:

HSS:
3/32"
1/8"
5/32"
3/16"
1/4"
Masonry:
3/16"
1/4"