Infinity Tools Additional Profile Knives for Insert-Pro Combination Rail and Stile Shaper Cutter

$35.93 ~~$49.9~~ In stock

Designed to fit on Infinity Tools Insert-Pro 1-Pc. Rail & Stile Shaper Cutter Heads for Cabinet Doors, these solid carbide knives are made from a C4 sub-micron grade of carbide that will last longer and outperform any brazed carbide cutters on the market. You will not believe the mirror finish we are able to put on these knives and how sharp the edges are. The quality of cut they produce is superb and sharpening is very simple. We recommend you keep a fresh set of knives on hand to eliminate down-time.

Follow this link to view our Insert-Pro 1-Pc. Rail & Stile Cutters for cabinet doors.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Stella ★★★★★ Oct 22, 2026

I swapped out the stock knives on my cutter head for these and noticed a cleaner cut right away on my first test door panel. The profile edges came out crisp with no tear-out, even on some figured maple I had lying around.

Adam ★★★★★ Oct 20, 2026

Installed these knives on my Insert-Pro head and the profile match was perfect right out of the box. They take a clean cut on cherry with no burning, even at higher feed rates.

Ellie A. ★★★★★ Oct 19, 2026

The C4 sub-micron carbide is noticeably tougher than standard carbide—I've run a full set of oak doors and the edges still look factory-fresh. Cuts are clean and chatter-free in the Insert-Pro head, exactly what I needed for production work.