Irwin 10233 Unibit3 1/4-Inch to 3/4-Inch 3/8-Inch Shank Step Drill Bit Hydraulics Tools 2 Space Circuit | 4

2 Space Circuit | 4 Single Poles | As Service Entrance Use Ground Bar PK3GTA-1

Best suited for maintenance and repair work

63427 Clamp

5-point bracing for stability

Irwin 10233 Unibit3 1/4-Inch to 3/4-Inch 3/8-Inch Shank Step Drill Bit Hydraulics Tools 2 Space Circuit | 4Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates Single flute cutting edge for greater control through steps Patented single flute cutting edge gives the user a true round hole every time 3 faltted shank prevents slipping in drill chuck New speedpoint tip penetrates faster than previous unibits and prevents walkingFrom the Manufacturer UNIBIT 3 9 Hole Sizes (1 4" 3 4"), 1 16"