Irwin Unibit #9 2-Step Drill Bit - 7/8 and 1-1/8-in - High Speed Steel - USA Made Knock Out Bit Diamond Stone For enhanced serviceability the pressure

For enhanced serviceability the pressure plate can be changed with no need for tools

Stem: Plain

Back-Plunger

New Old Stock Chicago Latrobe 15/16" Lathe Mandrel

01mm Grad Spline micrometer with carbide faces

Irwin Unibit #9 2-Step Drill Bit - 7/8 and 1-1/8-in - High Speed Steel - USA Made Knock Out Bit Diamond Stone For enhanced serviceability the pressureIrwin Unibit #9 2 Step Drill Bit 7 8 and 1 1 8 in High Speed Steel USA Made Knock Out Bit About this item Single flute cutting edge for greater control through steps SpeedPoint tip penetrates fast and helps prevent walking Hex shank helps prevent slipping in the drill chuck IRWIN Unibit step drill bits are ideal for drilling holes into thin materials, such as stainless steel, copper, brass, aluminum, plastic and laminates Drills 7 8 inch and 1 1 8