HSS vs Cobalt Drill Bits: Which One Should You Choose?
Overview
HSS vs Cobalt Drill Bits: Which One Should You Choose? supplied by Wryno Global. Key published specifications: Property HSS (M2); Cobalt M35 (5%) Cobalt M42 (8%); Working Hardness HRC 62–65; Hrc 65–67 HRC 67–69. Contact the supplier through the RFQ form for pricing, lead time and full datasheets.
Technical specifications
| Property | HSS (M2) |
|---|---|
| Cobalt M35 (5%) | Cobalt M42 (8%) |
| Working Hardness | HRC 62–65 |
| Hrc 65–67 | HRC 67–69 |
| Red Hardness (max temp) | ~600°C |
| Toughness | High |
| Medium | Lower |
| Best For | Wood, plastic, mild steel, aluminum |
| Stainless steel, tool steel | Hardened steel, cast iron, titanium |
| Expected Life (mild steel) | 150–250 holes* |
| 200–350 holes* | 250–400 holes* |
| Expected Life (stainless steel) | 30–60 holes* |
| 120–200 holes* | 180–300 holes* |
| Breakage Risk (handheld) | Low |
| Sharpening | Easy |
| Moderate | More difficult |