What this tool adds
What this tool adds to your bench
Use this gauge to carry a set distance from the edge of a board as a scored line. Its single round cutter makes it a straightforward comparison for shoulders and other single-line layout. The two additional cutters are replacements, rather than a promise of two simultaneous marking lines.
The brass head is 1-5/8 inches in diameter. A knurled fine-adjustment screw lets you refine its position, while the groove in the steel beam keeps the head from rotating during that adjustment. The beam is listed at 7 inches long and 5/16 inch in diameter.
The hardened steel cutter measures 3/8 inch in diameter. It can retract into the head’s countersink when the gauge is put away. The selected offer includes the gauge and two extra cutters, so compare future replacements against this cutter specification rather than relying on a similar-looking wheel.
Choose this format when you want a brass fence and fine control of one offset line. Compare the iGaging 34-711 when a mortise-cutter arrangement is important, or a Kakuri Kebiki for a blade-style alternative. Beam length alone is not a verified maximum marking offset.
Choose for your actual work
- Compare single-line layout with a mortise-specific cutter arrangement.
- Keep beam length separate from maximum working offset.
Fit checks & limits
- No maximum offset or guaranteed accuracy tolerance is established here.
- Two spare cutters do not establish simultaneous double-line marking.
Use & care
Retract the cutter into the head’s countersink for storage as described by the source.
Questions before you choose
Why is the beam groove useful?
It keeps the head from rotating while you make fine adjustments. It does not provide an independently measured accuracy guarantee.
Do the two extra cutters turn it into a mortise gauge?
They are described as replacement cutters. Compare the iGaging mortise model if a dedicated mortise-cutter arrangement is the function you need.
Will a seven-inch beam give a seven-inch marking offset?
That dimension is the beam length. A maximum usable marking offset is not established by the overall beam dimension alone.

