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Ref 370 / 374H: EXPERT Drill stainless steel

1 Colonne foret 370/374

45'000 holes

INOX 410

Thickness 3 mm

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

► Dimensions EXPERT DRILL stainless steel with internal coolant - ref. 374H (.pdf)


Article Eurotec (Mai 2015)

We have developed a new tool allowing to drill over 45'000 holes of excellent quality in stainless steel 410. 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.

Customer testimonial

shaver pour arthroscopie foret expert inox 370
Application field:

Medical devices

Operation :

- Drilling of orthopedic shaver blades for arthroscopic surgery

- Material: stainless steel 410
- Tool: 2.50 mm 370 Series EXPERT drill
- Drilling depth: 3 mm

Results :

- 45'000 compliant holes drilled with one tool

- The drill 370 EXPERT Series is 9 times more performant than the reference tool.

Customer's feedback :
pouce «I was getting around 5'000 pieces per drill using a competitor tool. I have been amazed by the performance of the Louis Belet 370 drill !»

Comparative trial

  • Tested tools: Drill 370 Ø 1.85 x 12 mm / Standard drill Ø 1.85 x 12 mm
  • Machined material : Inox 904L and 316L
  • Thickness : 150 x 100 x 8 mm
  • Through holes

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


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

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Réalisation : NoPixel