Tvardy T02345 HSS M2 4.5 mm Black & Gold Long-Series Metal Drill Bit
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.29 Euro
catalog number:T02345
Availability:
EAN code:5901477180736
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,02 kg
By purchasing this product, you will receive 15 points from us, which you can use for shopping in our store. This applies only to customers registered in our store.
- Product description
- Product reviews (0)
TVARDY T02345 HSS M2 Black & Gold Long-Series 4.5 mm Metal Drill Bit
A long-series drill bit made from HSS M2 high-speed steel with a TiN (titanium nitride) coating, to DIN 340. Designed for drilling through and blind holes in metals, including difficult-to-machine materials.
Technical features
HSS M2 high-speed steel
A molybdenum alloy with a hardness of 63–65 HRC. It contains approx. 6% tungsten and 5% molybdenum, which provides wear resistance and keeps the cutting edge sharp during intensive work.
TiN coating (titanium nitride)
A black and gold ceramic layer that increases surface hardness to approx. 2400 HV. It reduces the coefficient of friction by 30–40%, which lowers the cutting temperature and extends the life of the drill bit by up to 3 times compared with an uncoated version.
135° point geometry
A two-stage point ground at 135° self-centres on start-up, with no need for a centre punch. It reduces the axial force required to start drilling, which is particularly important in thin sheet.
DIN 340 long-series design
A working length of 82 mm and an overall length of 126 mm make it possible to drill deep holes in hard-to-reach areas. The ground flute clears swarf effectively along the full length of the hole, preventing it from jamming.
Technical specification
| Model | T02345 |
| Nominal diameter | 4.5 mm |
| Overall length | 126 mm |
| Working length | 82 mm |
| Base material | HSS M2 (molybdenum high-speed steel) |
| Coating | TiN (titanium nitride) |
| Standard | DIN 340 |
| Shank type | Straight |
| Point angle | 135° (two-stage, ground) |
| Number of cutting edges | 2 (central cutting edges) |
| Flute type | Ground, right-hand |
Applications
- Drilling carbon and low-alloy steels up to 900 N/mm²
- Machining austenitic and ferritic stainless steels
- Drilling grey and nodular cast iron
- Machining aluminium and copper alloys
- Drilling holes in box sections and tubes
- Drilling deep holes in welded fabrications
- Assembly work in hard-to-reach areas
- Machining difficult-to-machine materials (titanium, heat-resistant alloys)
Use and maintenance
Cutting parameters
For structural steel (600 N/mm²): cutting speed 20–25 m/min, feed 0.08–0.12 mm/rev. For stainless steel: reduce the speed by 30–40% and use emulsion or oil cooling. Avoid overheating the TiN coating above 600°C.
Cooling
When drilling stainless steel and difficult-to-machine materials, use flood cooling. For carbon steels, dry drilling is acceptable at speeds reduced by 20%. For holes deeper than 3xD, internal cooling or frequent withdrawal of the drill bit is recommended.
Storage
Store in a dry place and protect the cutting edges from mechanical damage. The TiN coating requires no additional corrosion protection, but contact with aggressive chemicals should be avoided.
Commercial information
Nobody has written a review for this product yet. Be the first to write a review.
Write a review for this product and you will receive 100 points from us that you can use for shopping in our store. This applies only to customers logged in and registered in our store.
Only registered customers can write product reviews. If you have an account in our store, log in to it, if not, create a free account and write a review.
