Step drill bits are tested tested for speed and durability using mild and medium hardness steel.:
- DeWalt,
- Makita,
- Milwaukee Shockwave,
- Temo,
- Bosch Turbo,
- Lenox VB8,
- Hercules,
- Diablo,
- Irwin,
- Klein,
- Harbor Freight Drillmaster,
- Heiko, and
- Bauer.
Then, in the ultimate test for quality and brawn, Project Farm tests the top 7 Step Drill Bit brands for cutting speed and durability on AR400 armor plating.
Speed and durability are compared to a DeWalt and Bosch drill bit (twist drill).
