Boring bar blank BT 40-63-250 JIS B 6339 (MAS-BT) A

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  • DC.405.17.63
  • 4250001139278
  • 6.5
  • Dual Contact
Application: For the manufacturing of special tools. Note: Cone and flange hardened and... more
Product information "Boring bar blank BT 40-63-250 JIS B 6339 (MAS-BT) A"

Application:
For the manufacturing of special tools.


Note:
Cone and flange hardened and grinded. Soft body for later processing.


  • All holders are made of forged steel
  • Specific, low warpage hardened
  • Surface hardened HRC 58~60
  • Hardening depth 0,8mm~0,9mm
  • Taper angle tolerance < AT 3 according to DIN 2080
  • Surface roughness Ra < 0,4 µm
  • Tensile strength in the core of min. 800 N/mm² after DIN
  • All functional surfaces fine machined
D : 63
Type : Rohling
Internal cooling : Nein
Cooling version : A
Standard : JIS B 6339
Taper size : 40
A : 250
Face contact : Ja
Taper : BT-DC
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