Cobalt HSS M35 Metal Drill Bit 6.5 mm T03065 Tvardy
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.29 Euro
catalog number:T03065
Availability:
EAN code:5901477154546
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,03 kg
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Cobalt HSS M35 Metal Drill Bit 6.5 mm TVARDY T03065
Twist drill bit made from HSS M35 high-speed steel with a 5% cobalt content, designed for drilling structural steel, stainless steel and cast iron. The three-stage ground point lets you start drilling without centre punching.
Technical features
HSS M35 cobalt alloy
The 5% cobalt content increases the hardness and heat resistance of the steel. The drill bit keeps a sharp cutting edge at temperatures of up to 600°C, which allows it to run at higher spindle speeds without losing its cutting properties.
Three-stage ground point
The 125° point, precision-ground in three stages, is self-centring. It removes the need for centre punching beforehand, which shortens working time and reduces the risk of the hole wandering.
Ground flute
Precision-machined flutes ensure efficient chip evacuation from the hole. This reduces drilling resistance and the risk of the tool jamming, particularly in deep holes.
DIN 338 compliance
Standard dimensions and manufacturing tolerances guarantee repeatable hole diameters and compatibility with drill chucks from all manufacturers (cylindrical shanks).
Technical specification
| Model | T03065 |
| Nominal diameter | 6.5 mm |
| Material | HSS M35 (high-speed steel with 5% cobalt) |
| Shank type | Cylindrical |
| Manufacturing standard | DIN 338 |
| Point angle | 125° (3-stage ground point) |
| Flute type | Ground |
| Application | Drilling in metals |
Applications
- Drilling structural steel with a tensile strength of up to 1000 N/mm²
- Machining stainless and acid-resistant steels
- Drilling grey and ductile (nodular) cast iron
- Work in alloy and tool steels
- Drilling steel and iron castings
- Machining steel sheet of various thicknesses
- Drilling in welded sections and structures
Use and maintenance
Machining parameters
For S235-S355 structural steel, the recommended spindle speed is 1200-1500 rpm at a feed rate of 0.08-0.12 mm/rev. For stainless steels, reduce the speed by 30-40% and use emulsion coolant. When drilling dry, frequent breaks are needed to let the tool cool down.
Maintenance and sharpening
After each use, clean the flutes of chips and debris. The drill bit can be sharpened with a drill bit sharpener while maintaining the 125° point angle and the symmetry of the cutting edges. Incorrect sharpening leads to out-of-round holes and increased tool wear.
Commercial information
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Client: Ry...ak,date of purchase 21-12-2022 23:05
