Steel in Your Carbide Bucket

Your carbide bucket is worth real money — at $18 to $27 a pound for clean, sorted carbide, a full bucket is a serious check. But most buckets are not pure carbide. Mixed into almost every one is steel: boring bars, brazed bits, tool holders, cased dies, and collets. The steel is not worthless, and it does not make you dishonest. It just prices differently, and the more of it hiding in the bucket, the more it drags down what the whole lot pays.

This page names the five pieces of steel that hide in carbide buckets, what each one actually is, and how each one is priced. Sort them out before you weigh, and your carbide pays like carbide.

Steel boring bars — only the insert is carbide

A boring bar is a steel bar with a pocket and a screw at the end. The bar itself is steel, full stop. The little insert clamped in the pocket is the carbide. Keep the inserts, and the bars price as steel. A solid carbide boring bar does exist — it is noticeably heavier for its size and has no steel shank look — and it pays full solids money.

Brazed bits and brazed bars — only the tip is carbide

A brazed bit is a steel shank with a small carbide tip silver-soldered onto the end. You can usually see the braze line, a thin copper-colored seam where the tip meets the shank. The tip is real carbide and it has real value — it just prices on the tip's weight, not the whole tool's. Brazed tooling gets a custom quote on the carbide it carries.

Tool holders — steel, always

Tool holders, arbors, and shanks are steel by design. The carbide lives in the tool or insert the holder carries. Holders have resale value to the right buyer as tooling, and as scrap they price as steel — never by the carbide pound.

Cased dies — a carbide core inside a steel case

A cased die is a carbide nib shrunk into a steel case, and you can spot the fine ring seam where the two meet. The core is carbide and pays; the case is steel and does not. Cased dies price on the carbide fraction — I weigh the piece and price the core in the open, on the settlement sheet.

Collets — spring steel, never carbide

A collet is a slotted, tapered sleeve that has to flex to grip — ER, 5C, and every other style. Flexing is the one thing carbide cannot do, so collets are spring steel, every time. Price collets with your steel, not your carbide, and the carbide bucket stays clean.

Road milling teeth — steel body, carbide tip

A milling tooth is a steel body built to take a beating, with a small carbide tip brazed on the end. The tip is the carbide; the body is steel. Whole teeth price as wear parts on the tip — a tooth with its tip worn or knocked off is, for pricing, a piece of steel.

Manufacturers stamp the truth right on the tool. An HS or HSS stamp means high-speed steel — every time, no exceptions. Carbide is stamped CARBIDE or SOLID CARBIDE, or carries a grade code like C2, C5, or K10, especially on brazed tips. No stamp at all is common too — that is what the two checks below are for.

Clean, sorted solids settle at the top of the $18 to $27 range. Mixed buckets start at the $18 baseline because the sorting happens on my bench instead of yours. Steel separated out still gets bought — priced as steel, in the same deal, on the same settlement. Nothing you send is wasted; it just pays what it actually is.

More identification help lives in the Carbide Resource Center, including what is NOT carbide and the carbide identification guide. When You are ready, the price page has the current board.