Tiny Tools
HK Broaching Tools for Hexagon Keys The HK broaching system has been developed to machine internal keyways inside blind or through hole, using CNC machines.
Working Demo
To use with CPT standard SIM Bar Holders The holder can be located directly in the turret or the machine spindle Holder with rear clamping screw for full support during operation Available in BMK Grade only
Cutting Data
Material Tensile Strength (N/mm 2 )
Feed rate (mm/min)
In-feed per stroke (mm)
400-650
7000-9000
0.06-0.09
700-850
5000-6500
0.04-0.07
900-1000
4000-5500
0.03-0.05
1100-1200
3000-4500
0.02-0.04
The cutting data above is an initial recommendation and depends on the machine condition, workpiece pro le and the application clamping
A relief groove is highly recommended, if not possible a gradual volume decrease should be made at the end of the broaching groove The HK tool must be positioned outside of the hole/groove before each stroke After setup and rst stroke, we recommend to observe the tool and the application to make sure no collision occurred
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