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Flexible drill made from tungsten carbide for various applications

Dental
Aerospace
Medical
Mold making
Automotive
Mechanical engineering
Watches
Electronics/Electrics

CrazyDrill Flex is a solid carbide drill with the flexibility of an HSS drill but with the precision and wear resistance typical for a tungsten carbide drill. With its three versions, the drill can be used for all materials, even for plexiglass and thermoplastics. It is used predominantly in the watchmaking industry, medical technology, fuel injection technology, mold-making industry (ventilation bores, holes for start of wire EDM instead of countersink EDM) and other demanding applications.

CrazyDrill Flex Steel is mainly designed for steels, cast iron, aluminum alloys, brass and bronze, CrazyDrill Flex Titanium with its special cutting geometry for long chipping materials as titanium and copper. CrazyDrill Flex SST-Inox, on the other hand, with its digressive flute geometry is especially designed for stainless, acid and heat resistant materials and brass lead-free.

This helps to perform drilling operations considerably faster and in a more process-reliable manner in the watchmaking and jewelry, medical and aerospace industry.

Application examples for smallest drill bits CrazyDrill Flex / CrazyDrill Flexpilot

Dental

Material: Titanium (various)

Components:

  • Dental drill, hole for coolant (example: drilling Ø 0.5 mm (.020“), 20 mm (.787“) deep in Titanium Grade5) with CrazyDrill Flex Titanium
  • Dental implant (example: drill Ø 0.5 mm (.020“), 5 mm (.197“) deep in Titanium Grade6) with CrazyDrill Flex Titanium

Aerospace industry

Material: AISI 303, X2CrNiMo 18-9-2

Components:

  • Injection nozzle (example: drilling Ø 0.65 mm (.026“), 11 mm (.433“) deep in stainless steel AISI 303, X2CrNiMo 18-9-2, 1.4305) with CrazyDrill Flex SST-Inox

Medical technology

Material: various

Components:

  • Suction tube (example: drilling Ø 0.6 mm (.024“), 30 mm (1.181“) deep in Titanium Grade5, TiAl6V4) with CrazyDrill Flex Titanium
  • Surgical instrument (example: drilling Ø 0.3 mm (.012“), 1.8 mm (.071“) deep stainess steel X5CrNi18-10, 1.4301) with CrazyDrill Flex SST-Inox

Tool and mold making

Material: various

Components:

  • Air vent hole (example: drilling Ø 0.7 mm (.028“), 21 mm (.827“) deep in tough aluminum alloy ALCu4TiMgwa 420 N/mm²) with CrazyDrill Flex Steel
  • Vacuum holes for suction of air pockets during laminating of automobile components (example: drilling Ø 0.7 mm (.028“), 10.5 mm (.413“) deep in tough aluminum alloy) with CrazyDrill Flex Steel
  • Air vent hole in forged part (example: drilling Ø 0.2 mm (.008“), 4 mm (.157“) deep in HSS ASP30) with CrazyDrill Flex Steel
  • Air vent hole for glass form mould (example: drilling Ø 0.5 mm (.020“) and Ø 0.7 mm (.028“), 15 mm (.590“) and 35 mm (1.378“) deep in Bral, CuAl11Fe4ni4, HB 35) with CrazyDrill Flex Steel

Automotive industry

Material: tool steel 1.2436 - X210CrW12  

Components:

  • Turned part (example: drilling Ø 0.6 mm (.024“), 18 mm (.709“) deep in tool steel 1.2436 - X210CrW12) with CrazyDrill Flex Steel

Mechanical engineering

Material: various 

Components:

  • Drilling for special machine for use in synthetic industry (example: drilling Ø 0.2 mm (.008“), 4 mm (.157“) deep in X155CrVMo-12-1, 1.2379) with CrazyDrill Flex SST-Inox
  • Drilling holes in Plexiglass (example: drilling Ø 0.6 mm (.024“), 30 mm (1.181“) deep)  with CrazyDrill Flex Titanium

Jewelry / Watches

Material: various

Components:

  • Drilling holes in bracelet components (example: drilling Ø 1.0 mm (.039“), 20 mm (.787“) deep in steel 303 / 1.4305 / X 8 Cr Ni S 18-9) with CrazyDrill Flex SST-Inox
  • Holes in watch housing (example: drilling Ø 1.2 mm (.047“), 9.6 mm (.378“) deep in stainless steel 303 / 1.4305 / X 8 Cr Ni S 18-9) with CrazyDrill Flex SST-Inox

Electronics / electrical

Material : Brass lead-free, Permenorm 3601K3

Components :

  • Drilling holes in contact pins for fluorescent tubes (example: drilling Ø 0.6 mm (.024“), 18 mm (.709“) deep in lead free brass, CuZn37) with special CrazyDrill Flex SST-Inox
  • Drilling hole for component solenoid contactor (example: drilling Ø 0.7 mm (.028“), 2.1 mm (.083“) deep in in soft alloy, Permenorm 3601K3, ) with CrazyDrill Flexpilot Steel
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