Eltos DA-12 DFR

"The Milwaukee Red Helix Cobalt 7/16"" Drill Bit are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a Variable Helix th more→at includes an aggressive 35 degrees Helix Angle which ends at 15 degrees. The 135 degrees split point tip delivers a precision start and prevents walking for fast, accurate holes in hard metals, PVC and wood. The tapered drill bits feature a new enhanced tapered web that strengthens the bit's core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. black oxide brill bits."

IRWIN Speedbor MAX Speed Bits features three cutting spurs for faster, cleaner holes, less breakout, and extended drilling life

This One Way Screw Remover from eazypower is crafted with tough, hardened steel. Adjustable for a variety of screws, this tool is unique in its ability to remove 1-way screws. Designed for versatile u more→se, it can also remove stripped or rounded bolts.