Woodworking Machine Tool 1/2"x10x30 Two Flutes Router Bit For Drilling Machine

Need a 10 mm groove 30 mm deep in solid wood without changing the spindle? This bit cuts it: 10 mm blade diameter, 30 mm blade length, on a 1/2 inch (12.7 mm) shank, with two flutes to clear the chip. Blade is tungsten steel, handle high speed steel. Nine further sizes run from 1/2*6*22 to 1/2*15*30, so 10 sizes cover 6-15 mm diameters and 22-30 mm lengths. Published feed: 8-10 m/min at 18,000 r/min for a 6 mm cut.

A shop that mills slots, grooves and rebates every day runs into the same three problems: a head too wide for the slot, an edge too short for the depth, and a chip that stays in the cut instead of leaving it. This bit is a 10 mm answer to all three.

It is a two flute router bit for woodworking drilling machine tools: a 10 mm blade diameter and a 30 mm blade length on a 1/2 inch (12.7 mm) shank. The blade is tungsten steel; the handle is high speed steel, so the part that cuts and the part the collet grips are listed separately.

One shank carries ten size combinations, from 1/2*6*22 to 1/2*15*30 — blade diameters of 6-15 mm, blade lengths of 22-30 mm. The 10 mm head is 2.7 mm narrower than the 12.7 mm shank it is mounted on.

Speed is published instead of being left to trial: 6 mm cut, 18,000 r/min with 8-10 m/min, 21,000 with 12 m/min, 24,000 with 14 m/min; 8 mm cut, 18,000 with 10-12 m/min, 21,000 with 14 m/min, 24,000 with 18 m/min. Price by quotation.

What each number on the shank decides at the spindle:

• Two flutes, open gullet — two cutting edges with a chip space behind each one, so a 10 mm slot is cut twice per revolution instead of once.
• 10 mm blade, 1/2 inch shank — a 12.7 mm shank ground down to a 10 mm head, which is the geometry a narrow slot needs.
• 30 mm blade length — 30 mm of cutting edge below the shank, so depth per pass is bounded by that 30 mm, not by the machine.
• Tungsten steel blade — the cutting part is tungsten steel, named as the blade material on the listing.
• High speed steel handle — the shank, the part the collet grips, is high speed steel — a separate material from the blade.
• Ten sizes on one shank — 1/2*6*22 up to 1/2*15*30: diameters 6-15 mm, lengths 22-30 mm, one 1/2 inch grip.
• Published speed and feed — 18,000-24,000 r/min against 8-18 m/min, split by cutting diameter for 6 mm and 8 mm heads.
• For drilling machine tools — listed for woodworking drilling machine tools, in the woodworking industry, not a general hardware counter.
• Off-list sizes quoted — customisation is available, and the listing itself says other sizes on request.

The choice is usually between a head too wide for the slot and an outside job that has to be booked. A 10 mm head on a standard 12.7 mm shank is the third option.

• A head that fits the slot. 10 mm of blade against a 12.7 mm shank leaves 2.7 mm of clearance, so a 10 mm groove is cut by the edge, not the body.
• Depth is stated, not discovered. 30 mm of edge under the shank is the pass budget: a deeper slot takes more than one pass.
• Speed is written on the page. 18,000-24,000 r/min is already matched to 8-18 m/min for 6 mm and 8 mm heads, so the first cut is not a test cut.
• Two materials where they matter. tungsten steel at the edge, high speed steel at the grip — the wear part and the holding part are not the same steel.
• One collet, ten widths. 6-15 mm blade diameters all sit on the same 1/2 inch shank: a job change is a bit change, not a collet change.
• Reorder by three numbers. 1/2*10*30 reads shank, blade diameter, blade length: a spare is ordered without sending a photo.
• Off-list sizes are quoted, not refused. customisation is available and other sizes are on request: a diameter outside 6-15 mm is a quotation question, not a dead end.

Shank, blade diameter, blade length — in that order. So 1/2*10*30 is a 1/2 inch (12.7 mm) shank, a 10 mm blade diameter and a 30 mm blade length, and all 10 listed combinations share that same 1/2 inch shank.

Only if the collet or chuck takes 12.7 mm. Measure the bore of the collet, not the body of the tool holder: 1/2 inch equals 12.7 mm, and no listed size comes on a smaller shank.

Straight-walled work in wood — slots, grooves and rebates cut with a woodworking drilling machine tool. The listing names the woodworking industry, and the straight 10 mm blade is the shape that produces a 10 mm flat-bottomed slot.

Because that is what gets it into a narrow slot. A 10 mm head on a 12.7 mm shank leaves 2.7 mm of clearance, so a 10 mm groove can be cut without the shank body rubbing the walls.

Use the published pair for your diameter. 6 mm cut: 18,000 r/min with 8-10 m/min, 21,000 with 12 m/min, 24,000 with 14 m/min. 8 mm cut: 18,000 with 10-12 m/min, 21,000 with 14 m/min, 24,000 with 18 m/min.

Yes — 10 combinations are listed, from 1/2*6*22 to 1/2*15*30, covering 6-15 mm diameters and 22-30 mm lengths. Anything outside that is quoted on request under the other-sizes line.

Two flutes as listed, and other flute counts are also available. Two edges clear the chip from a 10 mm slot on each revolution, which is the usual choice for grooving rather than for a single finishing pass.

Tungsten steel blade on a high speed steel handle, priced by quotation. Send the size combination and the quantity, and the price comes back as a quote — the listing carries no fixed figure.