HSS Step Drill Bit Set 4-12mm 4-20mm 4-32mm Hex Shank Blue Nano Coated For Metal Woodworking

- Head Type: Hex Shank - Size: 4mm - 12/20/32mm Package includes: 3 - HSS step drill. Drill Bits For 3Pcs 4-12/20/32mm HSS Spiral Grooved Step Drill Set Hole Cutter Tool High Speed Steel Metal Hole Cutter Step Cone Drill - Ideal for multiple drilling on plastic, aluminium, copper, stainless steel and wood surfaces. Widely used for cutting holes in aluminium, insulation board, PVC board and wood thickness up to 5 mm. - The recommended speed is 250-400 RPM. PREMIUM MATERIAL - These step drill sets are made of exceptionally strong HSS steel material and coated with titanium, which is wear-resistant, corrosion-resistant, rust-resistant, sturdy and durable. - Cut through wood, sheet metal, steel and other surfaces less than 5mm thick. - If you have any questions about using the high speed steel step drills, please feel free to contact us. Widely used: the titanium drill is suitable for machining copper and aluminium parts, moulded steel, spring steel, cast iron parts, iron and other metal materials. Features: - Our step drill bits are made of high quality HSS steel material and coated with titanium, which is durable for long time use. Cone Cutter HSS Step Drill Bit Set 4-12mm 4-20mm 4-32mm Hex Shank Blue Nano Coated For Metal Woodworking HSS Step Drill Bits We will solve your questions as soon as possible., 3Pcs HSS Spiral Groove Step Drill Bit Set Titanium Coated Cone Hole Cutter Tool. 3Pcs HSS Cone Step Drill Bit Set Titanium Nitride Coated Quick Change 1/4 Shank. Material: HSS Steel. 32pcs Impact Driver Screwdriver Bit Set Drill Bits Torx 1/4 Hex Shank w/ Case Double-edged design provides faster, smoother drilling with low pressure. NestledNature Step Drill Bit HSS Spiral Groove Pagoda Hole Reamer Hex Shank Tool For Metal Black Step Drill Bit Hss Step Drill Bit Package includes: you will receive 3 step drill sets and a storage bag with 3 kinds of sizes.