Drill Bit Set PCB Circuit Board Gun Drill Bit 1/8'' Shank Drilling Tool Bit(10pcs 3.1-4.0mm)

==========High-concerned chemical : NoOrigin : Chinais_customized : YesCertification : NoModel Number : PCB001015105DIY Supplies : MetalworkingMaterial : Tungsten CarbideType : Gun Drill BitUse : PCB DrillingLength : as picture shows

• Multi-material drilling adaptability: Capable of drilling wood, metal, tile, concrete, glass, etc., meeting drilling needs in multiple scenarios.​
• Multiple specifications and sizes available: diameters ranging from 1mm to 16mm, and lengths from 50mm to 200mm, suitable for drilling holes of different depths.​
• High-hardness tool tip material: Made of high-speed steel (HSS), carbide, and diamond coating, it is wear-resistant and impact-resistant.​
• Sharp cutting edge design: The cutting edge has undergone fine grinding treatment, resulting in low cutting resistance, high drilling efficiency, and resistance to jamming.​
• Rust and corrosion resistance treatment: The surface is coated to isolate it from moisture, prevent rusting, and extend its lifespan.​
• Compatible with multiple tools: compatible with electric hand drills, impact drills, and hammers, with a collet adapter suitable for specifications ranging from 3mm to 13mm, offering strong versatility.