Evolution Power Tools 1/4″- 1″ Straight Flute Premium Step Drill Bit
Evolution Premium step drills are made from the same high-quality M2AL as Cyclone premium annular cutters. These tools are heat treated to 68RC, giving them more durability during tough applications. Evolution Premium step drills are used to produce a range of hole sizes in steel up to 1/8 In. thick using only one tool. The twin flute design allows for a smoother cutting action with no pre-drilling necessary. Evolution Premium step drills have 3 chucking flats on the driving shank to ensure no slipping in the chuck.
Two flutes
3/8 In. Shank
Hole size include: 1/4 In., 13/32 In., 9/16 In., 5/8 In., 11/16 In., 3/4 In., 13/16 In., 7/8 In., 15/16 In., 1 In.
These tools are heat treated to 68RC, giving them more durability during tough applications