
Blade Grind Types Explained: Flat, Hollow, Saber & Convex
The grind is the cross-sectional shape of a blade, how the flat stock gets thinned down from spine to edge, and it affects cutting performance, edge…

Blade Design
Chisel-ground single bevels give an extremely thin edge but pull to one side; double bevels cut straight. Why each is used and which to start with.
3 min readWritten by Rich LinvilleFree to read
Most Western knives use a double bevel edge without anyone thinking twice about it, but single bevel (chisel ground) edges show up often enough, especially on Japanese-style knives, that it’s worth understanding what actually changes when a blade only has one ground side instead of two.
Both sides of the blade are ground down toward the edge, meeting in the center. This is the default for the vast majority of knives: hunting knives, EDC knives, most kitchen knives, tactical knives. A double bevel edge cuts straight, tracking directly along the line you push it through material, and is symmetrical in how it handles regardless of which hand is using it.

Only one side of the blade is ground down to the edge; the other side stays flat, unground, all the way to the cutting line. Traditional Japanese kitchen knives (like a yanagiba or usuba) commonly use this, as do some specialty woodworking and food-prep tools. Because all the cutting geometry is on one side, a single bevel edge naturally pulls slightly toward the flat side as it cuts.

A single bevel can be taken to an extremely thin, precise edge on the ground side without sacrificing strength the way thinning both sides of a double bevel would, which is part of why they’re prized for fine, precise cuts like sashimi slicing. The flat back also acts as a reference surface, useful for certain paring and release cuts against a cutting board or workpiece.
Because a single bevel edge pulls to one side as it cuts, a blade ground for a right-handed user cuts differently, and often uncomfortably, in a left hand, and vice versa. This is a real, practical tradeoff: single bevel knives are typically made handed, and a maker offering them needs to ask which hand the knife is for, something that never comes up with a standard double bevel blade.

A single bevel edge is arguably simpler to sharpen in one sense, there’s only one angle to maintain instead of two, but it also requires occasional flattening of the back (the unground side) to keep the cutting geometry accurate over time, a maintenance step double bevel edges don’t need. Double bevel edges need both sides maintained at a matching angle to stay centered and straight-cutting.

Not as a first project. Getting a clean, flat, consistent single bevel grind is arguably harder to do evenly than a double bevel, since there’s no second side to help visually judge whether the geometry is centered and consistent, and any grinding mistake is fully visible on that one ground face. Build confidence with double bevel grinds first; see Blade Grind Types Explained for the standard grind options to start with.
Yes, “chisel grind” and “single bevel” describe the same construction: one side ground to the edge, the other side left flat.
Not comfortably for its intended precision use. It will still cut, but the edge geometry pulling the wrong direction makes controlled, precise cuts noticeably harder, which is why handedness is specified when these knives are made or bought.
Generally no, the thin, precise geometry that makes single bevel edges excellent for fine slicing also makes them more fragile under lateral stress or harder use than a sturdier double bevel edge, which is part of why they’re associated with precision food prep rather than general-purpose or outdoor knives.
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Same bench
I machine the parts, hand-assemble, track and test Torus grinders in Sterling, Illinois. Most orders ship in seven to ten business days from time of order.

Current dual-axis platform with a fiber-laser-cut 6061 chassis and single-knob tracking.

Current dual-axis platform with a steel chassis, more mass and less vibration.
These are the last Nebula chassis available until the next release. Once this run sells out, availability pauses until the next run is ready.
Next release: 10 more chassis expected Nov 17–Nov 24 (3–4 weeks from Oct 27).

Prior-design aluminum chassis, 90-degree tilt and 1.5-inch tooling arms.

One-man shop
I answer my own email. Tell me the steel, the machine and what it is doing, and I will tell you what I would try next.