8pcs Square Drill Bits, Wood Chisel Sets 6mm 6.4mm 8mm 9.5mm 11mm 12.7mm 14mm 16mm Square Hole Drill Bits Hole Cutter Drill Bit Sets

• 8 Size Drill Bit Sets -- This is almost the most variety of sizes on the market, including 6mm, 6.4mm, 8mm, 9.5mm, 11mm, 12.7mm, 14mm, 16mm, 8 different sizes of square drill bits. They can meet your different punching needs.
• Premium Materials -- Made of high quality carbon steel, after high temperature heat treatment, high hardness, high concentricity, durable.
• Wide Application -- This square hole drill bit is suitable for wood such as fiberboard, ductwood, pine, basswood and more. However, not suitable for processing metal, glass, plastic, concrete, plasterboard, etc.
• Must Be Used Together -- The square drill must be used in combination with a machine, and tools such as electric drills and impact machines are required. Note: A drill alone will not work in the drill press base.
• Package Includes -- The package includes 8 sizes of square diamonds, 6mm, 6.4mm, 8mm, 9.5mm, 11mm, 12.7mm, 14mm and 16mm. If you have any questions, please contact our professional customer service team to help you resolve any doubts.

8 sizes drill sets This is almost the most range of sizes on the market including 6mm, 6.4mm, 8mm, 9.5mm, 11mm, 12.7mm, 14mm, 16mm, 8 different sizes of square drill bits. They can meet your different punching needs. Premium materials Made of high quality carbon steel, after high temperature heat treatment, high hardness, high concentricity, durable. Wide application This square hole drill is suitable for wood such as fiberboard, ductwood, pine, basswood and more. However, not suitable for processing metal, glass, plastic, concrete, plasterboard, etc. Must Be Used Together The square drill must be used in combination with a machine, and tools such as electric drills and impact machines are required. Note: A drill alone will not work in the drill press base. Instructions for use 1. Insert the drill core and drill sleeve into the tool holder and hold it. 2. Take a 0.5mm-1mm thick disc and stick it on the step of the drill body. 3. After fixing the drill core, remove the metal sheet, adjust the angle of the drill sleeve and push up and clamp ( The purpose of using thin washers is to create a 0.5mm/1mm gap between the core head and the inner land of the drill sleeve to avoid bit jamming. Specification: 100% brand new and good quality. Material: carbon steel Size: 6mm, 6.4mm, 8mm, 9.5mm, 11mm, 12.7mm, 14mm, 16mm Package: 8 x square hole drill bits