Irwin UNIBIT HSS Step Drill Bit 7/8 to 1-1/8 In USA IWAS10239DF impact Unique square groove design makes

Unique square groove design makes the removal of door panels and other selected trim easier

Freud DS0612BW5 are the most innovative blades on the market

Inlet Fitting Size    1/4

Aeronca x 12 weiser

Irwin UNIBIT HSS Step Drill Bit 7/8 to 1-1/8 In USA IWAS10239DF impact Unique square groove design makesIrwin UNIBIT HSS Step Drill Bit 7 8 to 1 1 8 In USA IWAS10239DF Product Features Single flute cutting edge for greater control through steps 3 flatted shank prevents slipping in drill chuck New SpeedPoint tip penetrates faster than previous Unibits and prevents walking Ideal for drilling holes into thin materials like stainless steel, copper, brass, aluminum, plastic Self Starting 1 8" Maximum Material Thickness aeronca x 100