Sherline Lathe User Guide and Specifications

the finished diameter. Adjust depth of cut if necessary and complete the final pass using a
SLOW feed to obtain a smooth finish and exact size.
Cutoff or Parting Tool
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
(P/N 3002) utilizes a very slender, high speed tool steel cutting blade mounted in a
special tool holder. The thinness of the blade (.040") enables it to feed into the part quite
easily and at the same time minimizes the amount of waste material. One word of
caution; never use a parting tool on a part mounted between centers. The part may bind
on the cutter and result in a scrapped part or a broken cutting tool.
FIGURE 15—A parting tool used to separate a part from it's workpiece.
Always try to lay work out so the cutoff tool is used as close to the spindle as possible.
Set blade height by sliding the blade in its slot in the tool holder. It should be set so the
tip is aligned with the centerline of the part being cut. An unusual diameter may require a
shim under the front or rear of the holder to accomplish this. The tool can also be
mounted on the back side of the table by using the rear mounting block, P/N 3016.
NOTE: A rear mount cutoff tool is now available that allows the parting tool to be left in
place on the rear side of the part for quick use. The parting tool is held upside down in the
holder. See P/N 3018.
NOTE: ALWAYS USE CUTTING OIL WHEN USING THE CUTOFF TOOL. The
cut will be made much smoother, easier and cooler.