3PCS Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, Multi Size Hole Stepped Up Unibit for DIY Lovers Garpar the external handle is convenient

the external handle is convenient for carrying

or 2-standard-size handguns

just loosen the knob on the scraper and disassemble the upper cover to replace the blade

simply secure the base using the included screws

Acrylic fiber

3PCS Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, Multi Size Hole Stepped Up Unibit for DIY Lovers Garpar the external handle is convenientAbout this item High QualityThe step drill bits are made of classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper, stainless steel and many other types of sheet metal Two Flute DesignTwo flute design makes it easier for cutting, provides smoother, accurate, faster cutting, it's really good tools for us 1 4" Hex ShankQuick change 1 4" (6. 35mm) hex shank, which can