Page 121 - Carmex - Inch Catalog 2018-19 Rev. B

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Tiny Tools

CMR Cutting Data and General Recommendations

Coolant fluid
Dry machining should not be performed under any circumstances.
It is necessary to use an internal coolant in all applications.
Oil or Emulsion lubricants are recommended for best performance.
In the event of low coolant pressure, adding an external coolant can improve the tool
operation.

The cooling stream is designed to provide three benefits:
1. Cooling the cutting edge of the tool, and the contact area.
2. Pushing the chips away from the tool quickly, thereby reducing wear of the edge.
3. Helping to break the chips into smaller pieces and evacuating them from the cutting area.

ISO Materials Cutting Speed
Standard ft/min

Low and Medium Carbon Steels <0.55%C 65-245
P High Carbon Steels ≥0.55%C 65-245

Alloy Steels, Treated Steels 65-200
Stainless Steels - Free Cutting 65-200
M Stainless Steels - Austenitic 65-165

Cast Steels 65-230
K Cast Iron 65-330
Aluminum ≤12%Si, Copper 130-490
N Aluminum >12% Si 65-330

Synthetics, Duroplastics, Thermoplastics 130-490
S Nickel Alloys, Titanium Alloys 50-200
H Hardened Steels -
Recommended Feed Rate: .0005 - .001 inch/rev
HK Broaching Tools for Hexagon Keys

The HK broaching system have been developed to machine internal keyways inside blind or
through holes, using CNC machines.
Working Demo

For use with Carmex 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.

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