TCT Three Flutes Router Bit 1/2 Shank Milling Cutter Carbide Straight End Mill For Wood

Need a straight cutter that clears the chip instead of packing it into the slot? This TCT three flute router bit runs a 12.7 mm (1/2") shank with 5–12 mm cutting diameters and 20–60 mm blade lengths, so one collet setting covers 33 sizes. Three staggered carbide edges cut at the same time: more cutting force, less resistance, faster chip breaking, lower noise, and a smooth face and inner wall in wood, MDF, multilayer board and particle board, from 5 mm trimming cuts up to 12 mm slots.

A shop cutting slots and rebates in MDF and particle board hits the same three problems: a two flute bit packs chips into the slot and scorches the wall, a slender shank deflects so the cut wanders, and the finish comes out rough enough to need a second pass. This cutter is built to take all three out of the job.

It is a TCT three-edged staggered tooth straight cutter: steel shank body, cutting edge in integral tungsten carbide, 3 flutes, and a 12.7 mm (1/2") shank that fits a standard 1/2" router collet or CNC spindle. Cutting diameters run 5–12 mm, blade lengths 20–60 mm, and the series covers 33 sizes from 1/2*5*20 to 1/2*12*60.

The stagger is the point. Three edges cut at the same time, so cutting force rises while resistance and noise fall, and the broken tooth spacing snaps the chip short so it clears the slot instead of wrapping around the shank. Face and inner wall come off smooth, with a high finish that shortens the sanding pass.

The board list is wood, MDF, multilayer board, particle board and large core board. Price is on request. Orders ship by air, by sea or by express, and the most economical express route is picked for the quantity.

What the flutes, the shank and the three edges decide, in numbers:

• Three flutes — 3 edges share the chip load, so each edge takes a thinner cut at the same feed rate.
• Staggered tooth spacing — The edges are offset rather than aligned, so all three do not strike the same fibre at the same moment.
• 1/2" shank — 12.7 mm diameter, the size a standard 1/2" router collet or CNC spindle holds.
• Cutting diameter — 5–12 mm across the series, so fine trimming and deeper slotting share one shank.
• Blade length — 20 mm for shallow trimming up to 60 mm for deep slots and stacked cuts.
• 33 sizes — 1/2*5*20 through 1/2*12*60, every one of them built on the same 1/2" shank.
• Carbide edge — Integral tungsten carbide cutting edge on a steel shank body.
• Chip breaking — Broken tooth spacing snaps the chip short, so it clears the slot instead of packing it.
• Finish off the cutter — A smooth face and a smooth inner wall, so the sanding pass gets shorter.
• Board list — Wood, MDF, multilayer board, particle board and large core board.

Two bad options, and where this cutter sits between them:

• No burn from packed chips. Three flutes break the chip short, so the slot clears as it is cut, stays cool, and does not scorch the wall of the groove.
• One shank, the whole job. 5–12 mm diameters on the same 12.7 mm shank mean trimming, slotting and rebating need one collet setting instead of three different holders.
• Fewer passes to finish. The three edges leave a smooth face and a smooth inner wall, so the sanding or scraping pass after the cut gets shorter.
• Quieter, steadier cut. Three edges sharing the load lower resistance and noise, so a hand-fed router cuts straighter with less fighting at the handles.
• Right size on the first order. 33 sizes from 1/2*5*20 to 1/2*12*60, so diameter and blade length are matched to the job instead of one bit doing everything.
• Deep slots without one-sided load. Staggered teeth spread a deep pass in particle board over three edges instead of hammering one side of the shank.
• Buy the edge, not the holder. Steel shank body, tungsten carbide edge: a dull edge is a cutter replacement, not a spindle rebuild or a new collet.
• Size confirmed before the order. Send the cutting diameter and blade length you need, and they are checked against the 33-size list before a price is quoted.

Wood, MDF, multilayer board, particle board and large core board. Those five are the materials listed for this cutter, and the edge is tungsten carbide for board and solid wood work.

Yes. 1/2" is 12.7 mm, so the cutter mounts in any collet or spindle that takes a 1/2" shank, with no adapter or sleeve between the two.

Shank 1/2", cutting diameter 8 mm, blade length 30 mm. Every code in the list reads the same way: shank first, then D, then H.

Three edges share the chip load, so each edge takes a thinner cut and the chip breaks shorter. That is the reason the product data lists higher cutting force, lower resistance, lower noise and a smoother wall.

Match the blade length to the depth of the cut, not to the thickness of the board. 20 mm covers shallow trimming and rebating, while deep slots and stacked cuts need 40–60 mm.

Integral tungsten carbide on a steel body. The product data lists a shank steel body with the cutting edge in integral alloy, so the edge and the flute are one piece.

No. Blade length caps the depth of a single pass, so a 20 mm blade cannot reach a 60 mm slot. Two sizes from the same 1/2" series cover both jobs without changing the collet.

By air, by sea or by express, using the most economical express route for the order. Mixed sizes are quoted together because every size in the list shares the same 1/2" shank.