55° Negative Rake Insert Holder, P/N 7610

If you have trouble grinding good tools or if you choose to work with difficult materials such as stainless steel, this tool holder will bring a great deal more enjoyment to your machining. Manufacturing it from 7075 aluminum, which is approximately twice as hard as regular T6 aluminum, insures a long life for the holder. The carbide insert is designed in such a way that it cuts like a positive rake cutter. Positive rake cutters don’t require as much rigidity as negative rake cutters. This type of design allows the advantages of a negative rake cutter (four cutting edges per insert) without requiring the rigidity that can’t be found in smaller, bench-type lathes.

Carbide cutters give good finishes on hard-to-machine materials such as cold rolled steel. They will also work on aluminum, brass or leaded steels, and will last practically forever; however, the best finishes on those materials are still achieved with a good, sharp high-speed steel tool.

The holder comes with one four-sided carbide insert. Replacement cutters are available from Sherline (P/N 7612) as well as from other sources. Though not inexpensive, when you consider you are getting four cutting tools in one and are saving a lot of time in tool sharpening, it is really a pretty good deal.

NOTE: Replacement carbide inserts and other inserted tip tools are available through Sherline. See our page on carbide tools.

See also Sherline's 35° RH and LH inserted tip tool holders, P/N 2258.

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