Grinding jig tool holders

Tool holders for our tool bit grinding jig, (GJ-01), come in 5 different sizes, 3/16, 1/4, 5/16, 3/8 and 1/2 inch to fit most quality, ground, square modern tool bits! (*We have increased the capacity of the tool holders by adding the 1/2 inch square tool bit size which was not available from SBL, in doing so we increased the overall size of the block and the diameter of the toolholders by about .19 inch. Thus our model will NOT interchange with the original*, without turning OD down on a lathe).

PLEASE SPECIFY TOOL HOLDER SIZE UPON CHECKOUT!