Knife Anatomy: The Parts of a Chef Knife Explained
A chef knife has nine parts worth knowing: the tip, edge, belly, heel, spine, bolster, tang, scales and butt. Each one changes something specific about how the blade cuts, balances and lasts - which is why the names are worth learning before you buy.
Knife descriptions are written in a vocabulary nobody teaches you. Full tang, distal taper, choil - the words do real work, but only once you can point at what they mean. Here is the whole knife, front to back, and what each part actually decides.
The blade, from tip to heel
The tip and the point
The forward end of the blade, where it narrows to a point. This is your fine-work end: scoring, piercing, trimming fat, separating cloves of garlic. A delicate, acute tip is precise but easier to snap if you lever with it. Japanese shapes like the bunka and kiritsuke use an angled reverse-tanto tip that keeps a flat forward edge while still giving you a usable point.
The edge
The sharpened surface running the length of the blade. Two things decide how it performs: the steel behind it and the angle it is ground to. A harder steel holds an edge longer; a narrower angle cuts more easily but chips more readily. Most Western chef knives sit near 20 degrees per side, while Japanese-style blades are commonly ground to 12-15 degrees. That is why a Japanese knife feels sharper out of the box, and why it asks for slightly more care.
The belly
The curved section of edge between the middle of the blade and the tip. Belly is what lets you rock-chop, because the curve keeps part of the edge in contact with the board as you pivot. A flatter blade with little belly, like a nakiri, is built for straight up-and-down push cuts instead.
The heel
The rear corner of the edge, closest to the handle. This is where your leverage is greatest, so it is the part you use on dense work: winter squash, swede, the thick end of a carrot. Heel height also sets your knuckle clearance - how much room you have between your hand and the board.
The spine
The unsharpened top of the blade, and the most underrated spec on any knife listing. A thick spine adds stiffness and weight for heavy work; a thin one reduces drag so the blade parts food instead of wedging it apart. Good knives are also thinner at the tip than at the heel - a distal taper - which is why they feel nimble in front and solid at the back. The spine is where you pinch-grip, too, so a squared-off, unfinished spine is genuinely uncomfortable across a long prep session.
The bolster and the choil
The bolster is the thickened collar where blade meets handle. It adds forward weight, acts as a finger guard, and on a forged knife it is part of the same piece of steel. Many Japanese-style knives skip it in favour of a choil - a small unsharpened notch at the very start of the edge - which lets you sharpen the full length of the blade rather than leaving an unsharpened stub at the heel. Neither is better. A bolster suits cooks who like a front-heavy, authoritative knife; a choil suits cooks who sharpen their own blades.
The handle, and why the tang matters most
The tang
The tang is the portion of blade steel that continues back into the handle, and it is the one part you cannot see once the knife is built. A full tang runs the whole length and width of the handle, visible as a steel stripe between the scales. It sets the balance, carries the strength, and keeps the handle from working loose after years of impact cuts. A partial or rat-tail tang saves weight and cost, and is the usual failure point on cheap knives. The variations are covered properly in Knife Tangs Explained.
Scales, rivets and butt
The scales are the two pieces of handle material fixed to the tang - wood, burl, resin or composite. They decide grip, and how the knife behaves in a wet hand. The rivets are the pins holding them on; on a well-made knife they sit flush, because a proud rivet becomes a blister. The butt is the end of the handle, and its shape matters more than people expect: a squared butt digs into your palm on a long pull, a rounded one does not.
How the parts combine into balance
Balance is not a part - it is what all the parts add up to. Find it by resting the knife across one finger: the point where it sits level is the balance point. Sitting at or just forward of the bolster gives a blade-forward feel that does the work for you on a rock chop. Sitting further back towards the handle gives a nimbler knife that follows your hand on precise work.
Neither is correct. It is worth knowing which you prefer, because it is what people mean when they say a knife feels right and cannot explain why. Weight works the same way: heavier is not better, it is different, and past a point it is simply tiring.
The Dynasty Series 8-inch Chef Knife is a clear example of the Western pattern: full tang, a pronounced bolster, carbonised rosewood scales, and the weight sitting forward of your grip. The Torii 7-inch Chef Knife shows the other approach - hand-forged 7Cr17MoV high carbon steel, a thin spine, a 12-degree edge and a choil instead of a bolster, so the balance sits closer to your hand.
What to check before you buy
- Is the tang full? Look for a continuous steel line between the scales, along the top and bottom of the handle.
- How thick is the spine at the heel? Around 2mm is a sound all-round figure for a chef knife. Much thicker and it will wedge in dense vegetables.
- Is the spine finished? Run a thumb along it. Sharp, square corners mean the knife was not finished by hand.
- Where does it balance? Rest it on a finger near the bolster and see whether it tips forward or back.
- Is there a named core steel and a hardness figure? Stainless steel with no grade and no HRC number tells you nothing. See Rockwell hardness explained and edge retention.
Knife anatomy FAQs
What is the heel of a knife used for?
Force. The heel is the part of the edge closest to the handle, so it has the most leverage behind it. Use it for dense ingredients and anything that needs weight behind the cut, and keep the tip and belly for fine work.
What is the difference between the spine and the edge?
The spine is the blunt top of the blade; the edge is the sharpened bottom. The spine carries the knife's thickness and stiffness, the edge does the cutting. Spine thickness is a large part of why two knives of the same length can cut so differently.
Does a knife need a bolster?
No. A bolster adds forward weight and a finger guard, which some cooks prefer. Japanese-style knives usually replace it with a choil so the whole edge can be sharpened. Both are fully functional - it is a preference, not a quality marker.
What does full tang actually mean?
That the blade steel extends the entire length and width of the handle, with the scales fixed to either side. It is the strongest construction, it sets the balance, and it is the difference that shows up after years rather than weeks.
Shop the range
Every blade we make is full tang, hand-forged, and hand sharpened and oiled before it ships. Browse Chef Knives for the all-rounders, or Japanese Chef Knives for thinner blades, choils and 12-degree edges.
Shop the range: Chef Knives — every blade hand sharpened and oiled before it ships, 99-day home trial, free lifetime guarantee.
Read next: Types of Steel for Knives: The Complete 2026 Guide and What Makes a Great Chef Knife? Steel, Balance and Geometry Explained.
Every knife comes with a 99-day home trial and a free lifetime guarantee. Use it on your own board for three months - these are the sharpest blades you will ever use, or your money back.
