Irwin Unibit®

Unibit® Step Drill Set, 4-Pc, HSS #1/#2/#4/#21FeaturesSingle-flute cutting edge for greater control through stepsThree flatted shank prevents slipping in drill chuckNon-skid self-starting tip...

Cobalt Step Drills, 9/16 in-1 in, 8 StepsFeatures6x longer lifeLaser marked sizes

High Speed Steel Fractional Self-Starting, 1/8 in to 1/2 in, 13 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

Cobalt Step Drills, 1/8 in-1/2 in, 13 StepsFeatures6x longer lifeLaser marked sizes

High Speed Steel Fractional Self-Starting, 3/16 in to 1/2 in, 6 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

Cobalt Step Drills, 3/16 in-1/2 in, 6 StepsFeatures6x longer lifeLaser marked sizes

High Speed Steel Fractional Self-Starting, 1/4 in to 3/4 in, 9 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

Cobalt Step Drills, 1/4 in-3/4 in, 9 StepsFeatures6x longer lifeLaser marked sizes

High Speed Steel Fractional Self-Starting, 3/16 in to 7/8 in, 12 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

High Speed Steel Fractional Self-Starting, 1/4 in to 1-3/8 in, 10 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

High Speed Steel Fractional Self-Starting, 7/8 in to 1-1/8 in, 2 StepsFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with...

Cobalt Step Drills, 7/8 in-1 1/8 in, 2 StepsFeatures6x longer lifeLaser marked sizes

High Speed Steel Fractional Self-Starting, 3/8 inFeaturesSingle-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuckAlso available with (TiN) coating for...

Cobalt Step Drill Sets, 1/8 in to 3/4 in Cutting DiaFeatures6x longer lifeThree-flatted shankSpeedpoint™ tipLaser marked sizes

High Speed Steel Metric Self-Starting, 6 mm-18 mm, 7 StepsFeaturesIdeal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute...