Drillpro 6Pcs 1/8 to 1-3/8 Inch Upgrade Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch and Alumi

Description Drillpro 6Pcs 1 8 to 1 3 8 Inch Upgrade Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch and Aluminum Case Specifications Material High Speed Steel​Coating Titanuim Drill Bit Size 1 4 1 3 8 3 16 7 8 1 4 3 4 1 8 1 2 3 16 1 2Groove Spiral Features Durable titanium coated bits w spiral grooves the spiral grooved drill cut more smoothly than straight grooved ones the drill bit is sharp and can easily drill perfect holes in the metal sheet while the titanium coating improves durability hence lengthening the service life 50 sizes in 5 our bits set includes five standard step drill bits that are capable to drill 50 holes with different diameters saving you time and efforts to make your holes more accurate please do use a center punch to locate before drilling Universal compatibility the step drill bits help you to drill holes with different diameter simultaneously compatible with aluminum copper steel sheets and plastic and wood board that is less than 3mm 0 12 in in thickness Less splashingsaves your money x type opening design can facilitate the removal of cutting waste when drilling to keep the drill bit clean Clear laser measurements the well manufactured bits come with very highly visible laser measurements for you to easily find the size you want improving your drilling accuracy Package Included 5 x Step drill bit1 x Center punch1 x Aluminum box More Details