Technical Information

Mounting Details • NCM Square Shank Conversion
Toolholder Replacements • Metric
*For MCLNR/L holders.
Toolholder Replacements • Inch
*For MCLNR/L holders.
www.kennametal.com
KM Toolholder Replacement — Square Shank Toolholder — Style MCLNL shown
NOTE: F equals the dimension from the centerline of the KM cutting unit over the nose radius of the gage insert.
F2 equals the dimension from the back of the clamping unit to the centerline of the KM cutting unit (see column F2 above).
The offset is identical with most KM cutting units, except for positive lead angle units and neutral units.
Technical Information
KM Application Data
KM
replacement unit
square shank
equivalent B* B H L1 F F2
KM32-NCM4040 20 x 20 20 40 40 45 22 23
KM32-NCM5040 25 x 25 25 40 50 45 22 23
KM40-NCM5044 25 x 25 25 44 50 40 27 23
KM40-NCM6444 32 x 32 32 44 64 40 27 23
KM50-NCM6454 32 x 32 32 54 64 50 35 28
KM
replacement unit
square shank
equivalent B* B H L1 F F2
KM32-NCM2425 3/4 x 3/4 3/4 1.562 1.500 1.378 0.866 0.884
KM32-NCM3225 1 x 1 1 1.562 2.000 1.378 0.866 0.884
KM40-NCM3228 1 x 1 1 1.750 2.000 1.575 1.063 0.937
KM40-NCM4028 1-1/4 x 1-1/4 1-1/4 1.750 2.500 1.575 1.063 0.937
KM50-NCM4034 1-1/4 x 1-1/4 1-1/4 2.125 2.500 1.969 1.378 1.122
M51
Technical Information