A unique double flute design ensures the penetration of soft or thin materials at the proper speed. Malco's UB3 model drills 9 holes from sizes 1/4" to 3/4" in sheet metal without burring or deforming stock or threading drill bit. Malco Step Drills actually de burr as they drill. Perfect for use as a "hole-opening" reamer. They can also be used for making round holes from slots or intersecting holes. Made of industrial grade high speed steel. Malco Step Drills are heat treated and tempered to ensure maximum strength for long wearing rugged use. Completely resharpenable.
- Made of high speed steel
- Resharpenable
- Make a variety of hole sizes
- 9 Hole Sizes
- Description: Drills 9 hole sizes from 1/4" to 3/4" diameter in 1/16" increments
- Depth Each Step: 1/8"
- Elect. Drill Size: 3/8"
- Pilot Hole Req: no
