T-Slot Cutter, HSS

$15.97 ~~$24.95~~ In stock

T-slot cutting tools are designed to make T-slots in tables and beds. Two milling cutters are required for milling T-slots, an end mill and a T-slot cutter. An 1/4" vertical slot is milled into the piece so that the neck and shank of the T-slot cutter can enter.

These T-slot cutters have a positive radial rake, right and left-hand spiral with alternate side cutting teeth for maximum chip clearance.

The listed dimension is the width of the T-slot measured at the top of the T-slot. Additional dimensions in the Specifications

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Customer Reviews (5.0 / 5 · 5 reviews)

Evelyn ★★★★★ Oct 22, 2026

The dual-cutter setup saved me time since I could switch from the end mill to the T-slot cutter without adjusting my table. Cuts the 1/4" vertical slot cleanly, and the HSS held its edge through a dozen passes.

Violet ★★★★★ Oct 21, 2026

Cut the 3/8" wide groove in my mill table perfectly after using a standard end mill for the initial slot. The HSS teeth held up well through a dozen passes on cast iron. Exactly what I needed for this job.

Victoria ★★★★★ Oct 20, 2026

Milled the 1/4" vertical slot first with a standard end mill, then swapped in this cutter to open up the T shape—the HSS edge held up through a full run of cast iron without any chatter. Cut the top width cleanly and the neck cleared the slot walls just as it should.