5D Solid Carbide Drill Bit for Stainless Steel & Hardened Steel Model 836
Premium Material
- Made of ultra-fine grain tungsten carbide
- High hardness, heat resistance and wear resistance
- 3–5 times longer service life than standard HSS drill bits
- Stable performance under high-speed and heavy-load conditions
Advanced Structure Design
- 140° split-point tip: self-centering, no walking, no need for center drill
- Optimized flute design: smooth chip removal, low vibration, clean holes with less burrs
- High rigidity 5D length: strong anti-bending, minimal deflection, high precision
- Coolant compatible, prevents work hardening in stainless steel
Applications
Metal Fabrication: Automotive, aerospace, machinery, engine parts, brackets, shafts
Mold & Die Making: High-precision holes in hardened steel molds, inserts, tooling
Heavy Industry: Structural steel, bridges, pipelines, engineering equipment drilling
FAQ
Q1: Why choose carbide drill bits over HSS?
A: Carbide offers higher hardness and heat resistance, faster cutting, longer life, cleaner holes, and lower total cost.
Q2: Can it drill stainless steel without work hardening?
A: Yes. Sharp edge and optimized flute reduce heat build-up, effectively preventing work hardening. Coolant is recommended.
Q3: Is it suitable for CNC and hand drills?
A: Yes. 5D rigid design is perfect for CNC; 140° split point ensures stability in hand drills (coolant suggested).
