Review on Bosch DSB5013P Daredevil Spade - 13 Piece Set for Ultimate Drilling Efficiency by Ryan Brunson

As a low voltage installer I have to drill dozens of 1/8 thick I-beams to route the cable. After only making 3 holes, the 1 1/2 bit broke even on medium speed and low torque settings on my cordless drill, despite going through very thin wood. I would not recommend these bits due to poor quality.