Toolholding Solutions

Parlec’s Toolholding Solutions are manufactured to maintain precision, functionality and durability. CAT, DIN, BT, HSK, NMTB, Chiron and Morse taper holders along with solutions for Balanced and Balanceable Heat Shrink, ER Collet Chucks, Power Milling and Shell Mill holders make up Parlec’s toolholding line.


Toolholding

Products

BT Taper Specifications

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  • Meets or exceeds JIS B6339-1986 specifications. Refer to Manufacturing Specifications for taper information.
  • Taper is toleranced so that any error increases rate of taper only. Refer to Manufacturing Specifications for tolerance specifications.
  • Parlec provides tooling in a variety of taper styles including V-Flange, NMTB, ISO 7388 (DIN NOTCH), ISO 7388/1 (DIN 69871/B) and others upon request.
  • Refer to Manufacturing Specifications for taper accuracies.

BT TAPERS
Taper Type Gageline D1 D2 L1 L2 L3 L4 L5 Thread
B30 1.250 1.811 1.906 0.865 0.787 0.646 0.637 M12 – 1.75
B35 1.500 2.085 2.225 0.944 0.866 0.756 0.555 M12 – 1.75
B40 1.750 2.480 2.575 1.062 0.984 0.881 0.640 M16 – 2.0
B45 2.250 3.347 3.260 1.300 1.182 1.142 0.765 M20 – 2.5
B50 2.750 3.937 4.008 1.496 1.378 1.390 1.016 M24 – 3.0