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Lie Nielsen No. 48 Tongue and Groove Plane

Product code: 210954

Availability: In stock (1 currently available)



ex VAT

Free UK delivery on most orders over 45 pounds

This tool cuts a groove with one side of the cutter exposed. Swing the fence to expose both sides to cut the tongue. The slot in the one-piece blade registers on the milled body casting, to ensure squareness and equal depth of cut on both sides. Since this is a heavy stock removal tool no depth adjuster is needed. Made to center on 3/4" stock, tongue and groove will be offset on thinner or thicker stock. A companion tool made to center on 1/2"stock will be available shortly.


The 48 Tongue & Groove plane is sized to center on a 3/4” board. It can be used on thinner or wider stock, but the Tongue & Groove will be off-center.

Pull the locking pin at the front up to disengage from the fence. Swivel and lock the fence to switch from cutting either a Tongue or a Groove.

It is best to start work by cutting the tongue, and finish with the groove, in case your blade has dulled a bit. The quality of finish on the groove is less important.

To ensure straight cuts it is best to start the cut at the far end of the board. Start the second cut 6”-10” back from the first and repeat until you are taking a full length cut. Hold the fence firmly against the work until the full length cut is established.

The one-piece blade fits tightly on a milled track on the body casting. To adjust depth of cut, set by eye and take a test cut. Tap the back of the blade with a small hammer to increase depth. These tools are meant to take a thick shaving.

Geometry: The blade is bedded bevel-down at 45°.

Blade Sharpening: The blade comes ready to use. Slight additional honing will increase performance. A secondary bevel of up to 5 degrees helps achieve a razor edge quickly. Sharpening the blade square is particularly important on this plane.

Materials: The body is cast from Ductile Iron, a very strong alloy that will take a lot of abuse. These castings are fully stress-relieved, a process that removes inherent stresses and ensures that the tool will remain flat and true. Cherry knob and handle, other parts are Brass and Stainless Steel.

The blade is O-1 Tool Steel hardened to Rockwell 60-62. Tool Steel can rust. To protect your tools, you should oil, wax and/or wrap them after use. At the least, wipe your fingerprints off with an oily rag.

Maintenance: We recommend Camellia or Jojoba Oil - vegetable oil based products. They are non-toxic, odor free and easy to use.

Guarantee: Materials and workmanship are guaranteed for the life of your tool. Call for repairs or replacement parts.