Hocansen 3 Pcs Step Cone Drill Bits Counter Sink Drill Bits High Speed Steel Step Drill Bit Hex Shank Spiral Grooved Bit for Plastic, Wood Drilling（3-12mm,4-12mm/20mm）

• Multi Size Hole Stepped Up Bits HSS Titanium Coated Step Drill Bit Hex Shank Cone Drill use for Drilling Hole
• Material: Step drill bits made of HSS with titanium coating for strength and speed in cutting and drilling.
• Size: 3-12mm, 4-12mm, 4-20mm.
• Quantity: 3 Pieces;Colour: Gold.
• Applications: Step drills with hexagonal shanks are suitable for cutting, reaming and opening holes in wood, thin iron, aluminum, copper, PVC, plastic, fiberglass, gypsum board and other materials. Each step is marked with the diameter of the opening on the step for ease of use.

Spiral Grooved Bit 3-12mm、4-12mm/20mm Step Drill Bit Set Hex Shank Cone Drill Cone Drill Bits Description: Material: High-speed steel step drill bit with titanium alloy coating, smooth and wear-resistant, strong and durable, easy to use. Size: 3-12mm, 4-12mm, 4-20mm. Colour: Gold. Quantity: 3 Pieces. Hexagon shank step bits are widely used for drilling various materials, such as wood, aluminum, plasterboard, insulation board, PVC board, plastic and thin metals up to 5 mm thick. The hexagonal shank bits are suitable for most tools and are quick and easy to replace. Warm Tips: Please keep this product out of the reach of children to avoid unnecessary injuries.