[DETAIL] Product Overview Product Name: Hexagonal Shank Counterbore Drill 7 Piece Set Specification range: 2.5mm - 3.5mm Applicable scenarios: It is suitable for counterbore processing of metal, wood, plastic and other materials, and is often used in furniture assembly, mechanical maintenance and other fields. Features: High precision: The drill bit is precision machined to ensure accurate hole position and reduce errors. Durable Material: Made of high-speed steel, strong wear resistance and long service life. Hexagonal shank design: Provides better clamping force, prevents slippage, and improves operation stability. Multiple size options: The 7-piece set covers common sizes from 2.5mm to 3.5mm to meet diverse needs. Portable Set: Equipped with a special storage box for easy carrying and storage. Product Specifications: Size range: 2.5mm, 2.8mm, 3.0mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm Shank diameter: 6mm (hexagonal shank) Total length: about 75mm Material: High speed steel Packaging: Plastic storage box How to use: Choose the right drill bit: Choose the right size drill bit for your needs. Install the drill bit: Insert the hexagonal shank into the chuck of an electric or manual drill to ensure that it is secure. Start Drilling: Mark the hole on the surface of the material and slowly apply pressure to drill the hole. Clean up debris: After drilling is complete, clean up debris in time to keep the work area tidy. Applicable tools electric drill Hand drill Bench drills Precautions Safe operation: Wear protective eyewear to avoid debris splashes. Regular maintenance: Clean the drill bit after use and apply anti-rust oil appropriately. Avoid overheating: When using it for a long time, pay attention to the temperature of the drill bit and cool it down at the right time. Note: Due to differences in photography lighting and each monitor, there may be varying degrees of color difference. Due to manual measurement, the size of the product may differ by 0.5-1cm. Please allow for slight size errors. Thank you for your understanding! If you like our product, please give us a good review. Thank you. [ATTRIBUTES] - Hign-concerned Chemical: None - Origin: Mainland China - DIY Supplies: Woodworking - Hign-concerned Chemical: None - Origin: Mainland China - DIY Supplies: Woodworking - Material: High Speed Steel - Type: Countersink Drill Bits - Use: Wood Drilling - purpose: punch - Usage scenarios: carpentry - material: alloy - Compatible devices: Drilling rig, bench drill, electric drill, etc - Specifications: 7 of them