HSK - THERMAL SHRINK HOLDER Taper SizeHSK-E 32, 40, 50 & 63 A ➚ A .00012 50-52 HRc Ra 4µin Lmax G2.5 Lmin 40,000 RPM 4˚ HSK d D D1 J L2 L1 L Designation d D1 D L L1 L2 Lmin Lmax J Hex key*** HSK E 32 SRK1/8X2.000 .125 .591 .394 2.787 2.000 1.407 .394 .787 M4 2.0 HSK E 32 SRK3/16X2.000 .187 .591 .394 2.787 2.000 1.407 .591 .984 M4 2.0 HSK E 32 SRK1/4X2.000 .250 .630 .433 2.787 2.000 1.406 .709 1.102 M4 2.0 HSK E 32 SRK5/16X2.000 .312 .787 .551 2.787 2.000 1.406 .984 1.378 M4 2.0 HSK E 32 SRK3/8X2.000 .375 .866 .630 2.787 2.000 1.677 1.181 1.575 M4 2.0 HSK E 32 SRK1/2X2.000 .500 .984 .787 2.787 2.000 1.392 1.260 1.575 M4 2.0 HSK E 40 SRK1/8 X1.750 .125 .390 .590 2.537 1.750 1.400 .394 .630 M5 2.5 HSK E 40 SRK1/8 X3.000 .125 .390 .748 3.787 3.000 2.526 .394 .630 M5 2.5 HSK E 40 SRK3/16X1.750 .187 .390 .590 2.537 1.750 1.400 .590 .984 M4 2.0 HSK E 40 SRK3/16X3.000 .187 .390 .748 3.787 3.000 2.526 .590 .984 M4 2.0 HSK E 40 SRK1/4 X1.750 .250 .430 .630 2.537 1.750 1.400 .709 1.102 M5 2.5 HSK E 40 SRK1/4 X3.000 .250 .430 .787 3.787 3.000 2.524 .709 1.102 M5 2.5 HSK E 40 SRK5/16X1.750 .312 .787 .550 2.537 1.750 1.673 .984 1.378 M5 2.5 HSK E 40 SRK5/16X3.000 .312 .550 .905 3.787 3.000 2.518 .984 1.378 M6 3.0 HSK E 40 SRK3/8 X1.750 .375 .630 .866 2.537 1.750 1.670 1.181 1.575 M5 2.5 HSK E 40 SRK3/8 X3.000 .375 .630 .965 3.787 3.000 2.373 1.181 1.575 M8 4.0 HSK E 40 SRK7/16X1.750 .437 .790 1.024 2.537 1.750 1.665 1.220 1.614 M5 2.5 HSK E 40 SRK7/16X3.000 .437 .790 1.102 3.787 3.000 2.229 1.220 1.614 M10 5.0 HSK E 40 SRK1/2 X1.750 .500 .790 1.024 2.537 1.750 1.665 1.260 1.654 M5 2.5 HSK E 40 SRK1/2 X3.000 .500 .790 1.102 3.787 3.000 2.229 1.260 1.654 M10 5.0 HSK E 50 SRK1/8 X1.750* .125 .390 .590 2.774 1.750 1.400 .394 .630 M5 2.5 HSK E 50 SRK1/8 X3.000* .125 .390 .748 4.024 3.000 2.526 .394 .630 M5 2.5 HSK E 50 SRK3/16X1.750* .187 .390 .590 2.774 1.750 1.400 .590 .826 M6 3.0 HSK E 50 SRK3/16X3.000* .187 .390 .748 4.024 3.000 2.526 .590 .826 M6 3.0 HSK E 50 SRK1/4 X1.750* .250 .430 .630 2.774 1.750 1.400 .709 1.102 M5 2.5 HSK E 50 SRK1/4 X3.000* .250 .430 .787 4.024 3.000 2.524 .709 1.102 M5 2.5 HSK E 50 SRK5/16X1.750* .312 .550 .787 2.774 1.750 1.673 .984 1.378 M6 3.0 HSK E 50 SRK5/16X3.000* .312 .550 .905 4.024 3.000 2.518 .984 1.378 M6 3.0 HSK E 50 SRK3/8 X1.750* .375 .630 .866 2.774 1.750 1.670 1.181 1.575 M6 3.0 HSK E 50 SRK3/8 X3.000* .375 .630 .965 4.024 3.000 2.373 1.181 1.575 M8 4.0 HSK E 50 SRK7/16X1.750* .437 .790 1.024 2.774 1.750 1.665 1.220 1.614 M6 3.0 HSK E 50 SRK7/16X3.000* .437 .790 1.102 4.024 3.000 2.229 1.220 1.614 M10 5.0 HSK E 50 SRK1/2 X1.750* .500 .790 1.024 2.774 1.750 1.665 1.260 1.654 M6 3.0 HSK E 50 SRK1/2 X3.000* .500 .790 1.102 4.024 3.000 2.229 1.260 1.654 M10 5.0 HSK E 63 SRK1/8 X1.750** .125 .390 .590 2.774 1.750 1.400 .394 .630 M6 3 HSK E 63 SRK1/8 X3.000** .125 .390 .748 4.024 3.000 2.526 .394 .630 M6 3 HSK E 63 SRK3/16X1.750** .187 ..390 590 2.774 1.750 1.400 .590 .826 M6 3 HSK E 63 SRK3/16X3.000** .187 .390 .748 4.024 3.000 2.526 .590 .826 M6 3 HSK E 63 SRK1/4 X1.750** .250 .430 .630 2.774 1.750 1.400 .709 .945 M8 4 HSK E 63 SRK1/4 X3.000** .250 .430 .787 4.024 3.000 2.524 .709 .945 M8 4 HSK E 63 SRK5/16X1.750** .312 .550 .787 2.774 1.750 1.673 .984 1.378 M6 3 HSK E 63 SRK5/16X3.000** .312 .550 .905 4.024 3.000 2.518 .984 1.378 M6 3 HSK E 63 SRK3/8 X1.750** .375 .630 .866 2.774 1.750 1.670 1.181 1.575 M8 4 HSK E 63 SRK3/8 X3.000** .375 .630 1.000 4.024 3.000 2.373 1.181 1.575 M8 4 HSK E 63 SRK7/16X1.750** .437 .790 1.024 2.774 1.750 1.665 1.220 1.614 M8 4 HSK E 63 SRK7/16X3.000** .437 .790 1.102 4.024 3.000 2.229 1.220 1.614 M10 5 HSK E 63 SRK1/2 X1.750** .500 .790 1.024 2.774 1.750 1.665 1.260 1.654 M8 4 HSK E 63 SRK1/2 X3.000** .500 .790 1.102 4.024 3.000 2.229 1.260 1.654 M10 5 * Balanced to G2.5 35,000 RPM ** Balanced to G2.5 30,000 RPM *** Metric 759