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JIS B 6339-2 BT30

JIS B 6339-2  BT30

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JIS B 6339-2 BT30

Shrink fit chuck suitable to all kind of shrink fit units.

JIS B 6339-2 BT30.

  • Heat resistant hot-working steel
  • Hardened 54 – 2 HRC
  • For HSS and solid carbide tools
  • Shank tolerance h6
  • Cooling with Cool Jet for an extra charge
  • Cooling with Cool Flash for an extra charge
  • Included in delivery: Backup screw.

Features Shrink Fit Chuck Standard

The most important features:

  • 1. High runout accuracy (< 0.003 mm)
  • 2. Extreme clamping torque by high pressing in the clamping bore
  • 3. Short chamfer
  • 4. Dynamic form: Reinforced shank at long tool holders. Compromise between slimness (marginal interference contour) and rigidity
  • 5. Cool Jet (on request)
  • 6. Threaded bores for simple and fast balancing with screws

Cool Jet for Shrink Fit Chucks (optional)

Cool Jet (optional)

  • Optimized coolant bores, aimed at center
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • Higher reliability of cutting process
  • No more balls of chips on tool
  • Cool Jet starting from shank diameter 6 mm

Cool Flash

Cool Flash (optional)

  • Optimized coolant bores with coolant outlet through slots
  • Coolant directly to the cutting edge
  • Extended tool life up to 100%
  • No more balls of chips on tool
  • Optimized runout accuracy! No additional unbalance! No disturbing clearance!
  • Cool Flash available for shank diameter 6 - 25 mm


 Inquiry - JIS B 6339-2 BT30