3PCS HSS Step Bits, High Speed Steel Step Drill Bits Set - (4-12mm, 4-20mm and 4-32 mm) Cone Drill Bits Hole Cutter for Wood, Stainless Steel, Sheet Metal by SS SHOVAN

This Pagoda Drill Bit set contain 3 size: 4-12mm, 4-20mm and 4-32 mm, Supplied with a portable fabric bag.
Two-fluted design provides faster, smoother drilling, Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces.Step Cone Drill Bits design for precision drilling different size holes from 4mm up to 32mm in diameter,optimum speed and accuracy.
Titanium High Speed Steel Drill bits & Application: classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.Titanium drill bit is particularly suitable for processing copper and aluminum pieces / mold steel / spring steel / cast iron pieces / iron and other metal materials.
Quick assemble: 1/4"(6.35mm) hex shank work with most drill or drills with 1/4" chuck
Quality Warrenty: we provide 6 month quality warranty. no matter what problems you have, please contact with our aftersale team in the first time.