Cutoff Tool and Holder, P/N 3002

After completing a part in the lathe it is frequently necessary to separate the part from the excess material used for chucking. This operation is best accomplished with the use of a cutoff tool or "parting tool" as it is sometimes called. The Sherline cutoff tool and holder consists of a very slender high-speed tool steel cutting blade mounted in a special holder. The thinness of the blade (.040"or 1mm) enables it to feed into the part quite easily, and, at the same time, minimizes the amount of waste material. The turning speed for parting should be approximately one-half the normal turning speed for any given material.

One word of caution; never use a parting tool on a part mounted between centers. The part can bind on the cutter and result in a scrapped part or a broken tool. A small amount of cutting oil is a must. Parting off free machining material over a 1.00" (25mm) diameter will always be a problem on a machine of this size because of the thinness of the blade and the difficulty of keeping it lubricated in deep cuts.

Optional Riser Block for the Cutoff Tool...

A riser block is available for the cutoff tool. This is not meant to imply that you can part off large diameter stock, but it was designed for those who leave riser blocks in place all the time and still need to part off small diameter stock at the raised center height. If you already have the 3002 cutoff tool you would use a P/N 1296 riser block. It is used on the "back" side of the part with the parting blade held upside down in the holder.

READ INSTRUCTIONS FOR USING THE CUTOFF TOOL AND HOLDER (Click on your choice.)

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