Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal. With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean. The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 50 step sizes combined, each hole made with these step bits will be precise.
What's in the box
1 x Step drill 3/16-1/2''
1 x Step drill 1/8-1/2''
1 x Step drill 1/4-3/4''
1 x Step drill 3/16-7/8''
1 x Step drill 1/4-1-3/8"
