

Product Details
LD-183 HSS Twist Drill Bit Set 10pc
LD-183 HSS Twist Drill Bit Set provides 10 high-speed steel M2 drill bits in sizes 1mm to 10mm with 135-degree split point for clean, accurate drilling in metal, wood, plastic, and composite materials.
Core Features
- M2 high-speed steel for heat resistance and edge retention
- 135-degree split point for precise hole starting without walking
- Optimized helix flute design for efficient chip evacuation
- Black oxide coating reduces friction and prevents corrosion
- Complete 1mm to 10mm range for versatile drilling tasks
- Straight shank fits standard keyed and keyless drill chucks
Application Scenarios
- Steel and aluminum plate drilling in metal fabrication
- Hardwood and softwood boring in carpentry and furniture making
- Plastic enclosure and PVC pipe drilling
- Construction site general purpose drilling tasks
- Automotive repair and modification drilling
- DIY home improvement and renovation projects
FAQ
What is the difference between HSS and cobalt drill bits?
HSS (High Speed Steel) bits are suitable for drilling most metals, wood, and plastics. Cobalt bits contain 5-8% cobalt alloy for superior heat resistance and are recommended for harder materials like stainless steel and cast iron. The LD-183 uses M2 HSS suitable for general metal drilling.
Can these drill bits be used with an impact driver?
No, standard twist drill bits are designed for rotary drilling in drill chucks. Impact drivers deliver hammering action that can damage standard drill bits. Use impact-rated drill bits or switch to a standard drill for rotary-only operation.
What is the recommended drilling speed for different materials?
For steel: use lower speeds (800-1500 RPM for 6mm bit). For aluminum: medium speeds (1500-2500 RPM). For wood: higher speeds (2000-3000 RPM). Always use cutting fluid when drilling metal to extend bit life.
How do I prevent the drill bit from breaking?
Apply steady moderate pressure without forcing. Use the correct speed for the material. Withdraw periodically to clear chips. Never bend or apply lateral pressure to the bit. Ensure the workpiece is securely clamped.
