No. 40B Butt Mortise Plane

Our Butt Mortise Plane will help you cut neat, precise mortises for hinges, lock fronts, and strike plates in a fraction of the time it takes to set up an electric router and template.

Based on an original 1948 design by W. A. Dohmeyer, this tool does a job no other plane can do. The elongated slot in front of the blade provides a clear view of the work. It is easy to use to make precise mortises with sharply square corners to an accurate, uniform depth. Useful for mortising dutchmen to repair flaws in jambs, furniture, and doors.

9-5/8″ long x 1-1/2″ wide.
Blade is .875″ wide by .115″ thick, A2 Tool Steel.
Iron body, 1.70 lbs.

View our YouTube video”Butt Mortise Plane: Set Up and Use” here:

Materials:

The body is cast from Ductile Iron, a virtually unbreakable
alloy. The castings are fully stress-relieved, a process that removes inherent
stresses and ensures that the tool will remain flat and true. The cap is
Manganese Bronze. Other parts are Brass, Steel and Cherry.

The blade is A2 Tool Steel hardened to Rockwell 60-62, cryogenically
treated and double tempered. Our heat treating technique ensures
that the blade will take and hold a very fine edge for a long time.
After heat treating, the blade is fully surface ground on the top, back,
and cutting edge, giving a smooth, flat surface that will take a mirror
finish very quickly.

Maintenance:

Depending on how much use your tool gets, an occasional light sanding with 320 grit or finer wet/dry paper on a flat surface will keep the sole in as-new condition. Blades and tools with Iron bodies should be kept lightly oiled or waxed to prevent rust. We recommend Jojoba Oil, a plant based oil product that is non-toxic, odor-free and easy to use. Also, in our shop, we use a fine abrasive handblock to remove any light surface oxide from tool bodies and blades. Jojoba Oil and abrasive handblocks are available from us.

Find everything you need for tool care.

Guarantee:

Materials and workmanship are guaranteed for the life of your tool. Call for repairs or replacement parts. We are available for advice if you ever have a problem using your tool.

Proposition 65 Notice:

Bronze and brass alloys contain lead, a chemical known to the State of California to cause cancer and birth defects, or other reproductive harm. Wash hands after handling.