Drillpro HSS 4-12mm Spiral Grooved Step Drill Bit Titanium Coated Step Cone Drill Bit

Description: HSS 4-12mm Spiral Grooved Step Drill Bit Titanium Coated Step Cone Drill Bit ? Specification: Material: High speed steel 4241 Color: Golden (as picture shown) Size: 4-12mm(4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12)mm Total length: 72mm ? Features: - Good chip removal ability and durable for use. - Professional design, which makes drilling holes more precise with smoother cutting. - Works great in making a smooth, clean and perfectly round hole. - Using to cut holes in a variety of materials Including steel, brass, wood, plastic, etc. ? Pacakge Included: 1Pc x 4-12mm Spiral Grooved Drill ? More Details: