Silver Deming Drill Bit Set Black and Gold Finish

High-quality HSS material construction 17 pcs Black & Gold finish. 
Tri-flat shank for sure grip 1/2" shank diameter 135 degrees & split point for fast penetration and accurate starting.
It comes in an aluminum carry case size:

1/2, 17/32, 9/16, 19/32, 5/8, 21/32, 11/16, 23/32, 3/4, 25/32, 13/16, 27/32, 7/8, 29/32, 15/16, 31/32 & 1"