fr de it

Ref 370 / 374: EXPERT Drill stainless steel

7’000 holes

INOX 316L/904L

Thickness 8 mm - Through holes


► Dimensions EXPERT DRILL stainless steel - ref. 370 (.pdf)

► Dimensions EXPERT DRILL stainless steel with coolant holes - ref. 374 (.pdf)
 Article Eurotec (May 2015)

 

We have developed a new tool allowing to drill over 7000 holes of excellent quality in stainless steel 316L and 904L. In order to achieve this result, Louis Belet’s R&D team completely revised the design of the tool. Drill material, geometrics, coating and cutting parameters were all optimized. This new stainless steel drill of the EXPERT series produces holes that are more precise, cleaner and present les burrs. Moreover, thanks to an integrated chip-breaker, chips will no longer roll around the clamping system or scratch the work piece. 

Comparative trial

Cutting conditions :

Vc =   30 m/min
 f =   0.04 mm
 n =  5164 /min
 Vf =  200 mm/min
Peck drilling =  0.37 mm
Cutting oil

End of life criteria

- Broken tool
- Ø out of tolerances : ±0.01 mm
- Conical hole max 0.01
 - Excessive burr
- Hole location : ±0.01 mm

Results :

Drilling with  ref. 370

- Less burrs
- Holes more accurate
- Short chips
- Cleaner holes

graphique 370

Drill 370

Standard drill


7’000 holes

bout 370

1’800 holes

bout standard


Examination of the chips

copeaux 370

- Fragmentation of the chips
- No chip coiled around the tool shank

copeaux standard

- Long chips
- Building of a cluster of chips around the tool shank


Holes geometries comparison

dernier trou 370

- Less conicity
- Cleaner holes
- Small burrs

dernier trou standard

 - More conicity
 - More burrs
 -  Marks on holes


This drill is available in a large number of diameters, from 0.50 to 3.00 mm (> Standard Dimensions). Other dimensions can be produced on request.


LOUIS BELET S.A
Les Gasses 11
2943 Vendlincourt
SWITZERLAND

TEL.: +41 (0)32 474 04 10
FAX: +41 (0)32 474 45 42
www.louisbelet.ch
info@louisbelet.ch

Links
Press releases
Sponsoring
Sitemap


Réalisation : NoPixel