The forward end is beveled on one side; the back end is rounded to fit the holes in the main board A.Its length is determined by the distance from the edge of the tool being ground to the most convenient hole in A, into which the rear end is to be inserted.

It is better to use as high a hole as convenient, so that as the grindstone wears down, the stick will still be serviceable; (2) a strip, D, of the same width as A and 7/8" thick, and 15" to 18" long; (3) a cleat, E, 5/8"x3/4", nailed across D; (4) a rectangular loop of wrought iron or brass, F, which passes around the farther end of the two strips, C and D, and is fastened loosely to D by staples or screws.
[Illustration: Fig.222.Grinding Device.] [Illustration: Fig.223.Holder for Grinding Chisels or Plane-Bits.] The tool to be ground slips between this loop and the strip C, and is held firmly in place by the pressure applied to the back end of D, which thus acts as a lever on the fulcrum E.
Any desired bevel may be obtained on the tool to be sharpened, by choosing the proper hole in A for the back end of C or by adjusting the tool forward or backward in the clamp.

As much pressure may be put on the tool as the driving belt will stand without slipping off.
A still simpler holder for the plane-bit only, is a strip of wood 1-1/2" thick and 2" wide, cut in the shape G shown in Fig.223.

The plane-bit fits into the saw-kerf K, and in grinding is easily held firmly in place by the hand.

By inserting the rear end of the stick G into a higher or lower hole in the board A, any desired angle may be obtained.