Small Tongue and Groove Plane Blade Lie-Nielsen Toolworks

Small Tongue and Groove Plane Blade



Please Note: Our blades are designed to fit Lie-Nielsen tools, not other makers'.

No. 49 Tongue & Groove Plane Blade

For use in our No. 49 Tongue & Groove Plane. Centers on 1/2" stock, leaving a .166" wide tongue and .230" deep grooves. On narrower or wider boards, the tongue will be offset from center, but still hidden within the joint.

  • Comes with a 25° flat ground bevel.
  • 3/16" thick, O1 Steel.

Note: Blade does not work in vintage Stanley planes.


The blade comes with a 25° flat ground bevel; it sits in the tool at 45°, bevel down.


The blade comes ready to use, but honing a secondary bevel of 5° or 10° will increase performance, help achieve a razor edge quickly, and improve edge life in hardwoods. You can find sharpening instructions in a printable PDF format here:
Sharpening Instructions PDF

For more information on advanced sharpening we recommend David Charlesworth’s video Plane Sharpening, available in both DVD and streaming formats.


The blade is O1 Tool Steel, hardened to Rockwell 60-62.


Blades 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.