10 holes, 1/4" to 1 3/8", increments - 1/8".Shank size 1/2", maximum material thickness 1/8".Easy-to-sharpen, non-skid tip - eliminates skidding and the need for center punching; the tip gives sure starts even on curved surfaces.Single-fluted cutting edge - helps assure true round holes and allows greater control.Multiple steps - as many as 13 different hole sizes in a single bit eliminates the need to maintain a toolbox full of specific size drill bits.Hardened steel for long life - constructed of industrial grade high speed molybdenum steel and heat treated to assure maximum durability.3 Flatted shank - prevents slipping in drill chuck.
Unibit UN5 Fractional/Self-Starting 10 Holes Step Drill Bit - 1/4" - 1-3/8"
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