Fret Slotting Miter Box

Using the Fret Slotting Miter Box to accurately cut fret slots with a fretting handsaw.


The luthier's Fret Slotting Miter Box is designed to work with Stewart-MacDonald's fret slotting saws. When used with our notched Dual Fret Scale Templates, slots for popular scale lengths can be cut with accuracy and ease (the Miter Box can be used without the templates if desired). The two fixed sidewalls keep the saw square, and the two adjustable sidewalls can be set to hold the saw snugly in alignment. The guide bearings move up and down, to adjust the saw for the desired depth of cut.

To use the Fret Slotting Miter Box with one of our notched dual templates, affix the fingerboard to the template with double-sided tape. Set the saw depth in a waste portion of the fingerboard, by adjusting the roller bearings up or down until the depth of cut is satisfactory. With the template on the bottom, engage one of the template notches into the indexing pin on the fixed sidewall of the Miter Box. Set the two adjustable sidewalls so that the saw moves freely back and forth in the guide blocks, yet is held firmly from side to side. Once these adjustments are completed, saw a fret slot, lift and move the template/fingerboard to the next notch, and saw the next slot. When all the slots have been sawed, separate the fingerboard from the template.

It is helpful, although not required, to place a spacer under the fingerboard to replace the template. When using this set-up for custom scale lengths, carefully mark the desired fret pattern on the fingerboard and saw accurately on your marked lines.