HOHXEN Grooved Step Drill Bit[6-35mm], High Speed Steel Titanium Coated, Hex Shank,HSS Hole Cutter Tool Set for DIY Plastic Wood Metal Aluminum Copper(Gold)

Description

• [13 Steps]:6-35mm Titanium Coated Step Cone Drill Bit 13 Steps Hex Shank, INCLUDES 13 STEP SIZES: 6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm.A variety of drill sizes are perfect for your needs, saving you time.
• [Superior Quality Material]:These step drill bits are made of heat treated 4241 high speed steel(HSS) with titanium nitride coating.Titanium coated to reduce friction and run cooler,can effectively extend the service life.
• [Ladder structure]:A drill bit can drill holes of various specifications, no need to buy multiple drill bits, saving space and money.
• [Double slot]:automatically deburr as you drill.Provides faster, smoother cutting.A tri-flat shank ensure a firm grip.1/4″ hex shank (6.35mm):Can be easily fit into power driver, drill and press drill.
• [Suitable for]:Step Drill Bit Set can be used for workpieces with a hardness of less than 25° and a thickness of less than 5 mm. Suitable for a variety of materials, such as carbon steel, sheet iron, insulation boards, PVC boards, planks, and wood, etc.They also help to expand existing holes.Not recommended for stainless steel.