Step Drills


Malco’s UB1, UB3, UB11, and UB20 Step Drills offer a unique double flute design to assure the penetration of soft or thin materials at the proper speed. These step drills, drill hole sizes from 1/8″ to 1″ through 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. Each drill is made of industrial grade high speed steel and are heat treated and tempered to assure maximum strength for long wearing rugged use. All step drills from Malco are able to be resharpened for longer use.

Features

  • Made of high speed steel and heat treat tempered.
  • Can be resharpened.
  • Make a variety of hole sizes.

Specifications

Catalog #DescriptionDepth Each Step (in.)Elect. Drill Size (in.)Pilot Hole Req (in.)
UB1Drills 13 hole sizes from 1/8 to 1/2 in.1/83/8no
UB20Drills 8 hole sizes from 9/16 to 1 in.1/83/81/2
UB3Drills 9 hole sizes from 1/4 to 3/4 in.1/83/8no
UB11Drills 11 hole sizes from 1/4 to 7/8 in.n/a3/8no

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