Bevel-Up vs. Bevel-Down Planes

The tip of a plane iron or blade is beveled on only one face, and handplanes can be classified based on whether the blade is mounted with the bevel facing up or down. Until recently, bevel-down planes were the rule.

Only small block planes were bevel-up. Now, a variety of bench planes have this bevel-up configuration, which makes them more versatile.

Here’s why: In a bevel-down plane, the blade (along with a chipbreaker, which attaches to it) rests on a frog—typically, a 45° bed screwed to the plane body. Because the bevel is behind the edge, the cutting angle is fixed at 45°. That’s a good angle for most tasks, but not for end grain or grain prone to tearout.

A good angle for general use. The 45º cutting angle of a standard plane makes fast work of surfacing this poplar board.

In a bevel-up plane, the bevel leads into the cut, contributing to the cutting angle. The bed is molded into the plane body at a low angle, usually 12°. So a bevel-up plane with an iron ground to 25° has an effective cutting angle of 37°. However, you can change that angle easily—by changing blades or grinding a new bevel angle on the existing blade.

A low-angle for end grain. This bevel-up plane is equipped with a blade beveled at 25º on a 12º bed, for a cutting angle of 37º.

This versatility makes bevel-up planes especially handy for working a variety of woods and/or grains. You can make the angle low for end grain and softer woods, steep for difficult grain in dense or highly figured woods, or medium for everything else. (See Handplane blade angles from FWW #186.)

Steeper angle for tougher grain. The same plane with a 38º blade provides a 50º cutting angle for this tiger-maple board.

All in all, bevel-up planes are more “woodworker friendly.” With fewer parts—no frogs or chipbreakers as on bevel-down planes—they are easier to set up and maintain. Their adjustable throat plates quickly set to the desired mouth opening to support the wood fibers and prevent tearout. (On bevel-down planes, you need to move the frog forward or back to change the mouth opening, a longer and trickier operation.) In short, their ability to work any grain situation makes bevel-up planes more versatile.

Photos: Charlie Reina; drawings: Michael Pekovich

Fine Woodworking Recommended Products

Lie-Nielsen No. 102 Low Angle Block Plane

With smooth, precise adjustments and wonderful balance, this compact block plane is a joy to use. It doesn’t have any bells and whistles, but there’s not a better block plane available for the money.

Buy at Direct

Starrett 4" Double Square

Head is easy to remove, replace, and lock down; narrowest blade, at 5⁄8 in., made it easier to fit into tight places; hard to read under bright lights.

Buy at Woodcraft Buy at Amazon

Tite-Mark Marking Gauge

These gauges can be easily and precisely adjusted with one hand, which allows you to set the tool while holding a ruler or workpiece in the other. The quality is exceptional, and all have sharp cutters that offer great visibility.

Buy at Lie-Nielsen Toolworks