2-1x2-1 Two Flutes Router Bits Cutting Tools Woodworking Drilling Machine Tools

Need a two-flute router bit for a 1/2 in collet? The 2-1x2-1 Two Flutes Router Bit is a straight bit with a 1/2 in (12.7 mm) shank, a 1/2 in (12.7 mm) cutting diameter, two cutting edges in tungsten steel and a high speed steel body. The published data sheet runs it at 18,000 / 21,000 / 24,000 r/min, with feed settings from 8-10 M to 18 M. Customization is supported, other sizes are quoted on request, and each bit ships in its own plastic box.

Three things slow a router bench down. A bit that packs chips into the groove and burns the second pass, a shank that galls in the collet after a few hours at speed, and one diameter per purchase, so every new groove depth means another order. The 2-1x2-1 Two Flutes Router Bit answers the first two directly, and the third through customization.

It is a straight two-flute router bit. The size code 2-1x2-1 is the figure on the box: shank diameter 1/2 in (12.7 mm) by cutting diameter 1/2 in (12.7 mm). The cutting edge is tungsten steel, the shank is high speed steel, and the head carries two flutes.

Two flutes leave half the head open for chip flow, so dust leaves the groove instead of being recut. The published data sheet lists the family at 18,000 / 21,000 / 24,000 r/min, with feed settings from 8-10 M up to 18 M, quoted per cutting edge diameter for 6 mm and 8 mm heads.

Customization is supported, so a diameter or length outside the listed code is quoted rather than refused, and other sizes are available on request. Price is quoted per order, because the same code ships in different quantities to different workshops. Each bit travels in its own box, and the shank is machined for woodworking drilling machine tooling.

What decides whether this bit fits your collet, and how it behaves in a 1/2 in cut.

• 1/2 in shank — 12.7 mm of high speed steel, so the bit needs a 1/2 in collet; measure the collet before ordering.
• 1/2 in cutting diameter — a 12.7 mm straight cut, so a 1/2 in groove takes one pass, not two.
• Two flutes (2Z) — two cutting edges set 180° apart leave half the head open for chip escape.
• Tungsten steel edge — the cutting edge is tungsten steel, so abrasion is spent on the edge, not on the body.
• High speed steel shank — the 1/2 in handle carries the clamp load of the collet without yielding.
• Straight profile — parallel flutes on a flat bottom, for grooves, rebates, dadoes and flat clearing passes.
• Published feed chart — six combinations: 8-10 M at 18,000, 12 M at 21,000 and 14 M at 24,000 for a 6 mm head; 10-12 M / 14 M / 18 M for an 8 mm head.
• Woodworking machine fit — listed for woodworking drilling machines, with the shank machined for that tooling.
• Board range — softwood, hardwood and composite board are all listed for this bit.
• Individual box — each bit ships in its own plastic box, so the 1/2 in shank and the ground edge arrive unbumped.

On a 1/2 in router bench the choice is usually to keep running a dull bit, or to stop and order one diameter at a time. One code shortens both.

• One pass, one 1/2 in groove. A 12.7 mm cutting diameter cuts the groove to full width in a single pass, so depth is the only setting left to adjust.
• Chips leave instead of recirculating. two flutes leave half the head open, which is what keeps a deep groove from burning on the second pass.
• The edge wears, not the body. Tungsten steel on the cutting edge and high speed steel in the shank put each material where it does the work.
• A collet you can trust at speed. A 1/2 in high speed steel shank in an unworn matching collet holds at 18,000–24,000 r/min.
• Setup becomes a lookup. Six published speed and feed combinations, from 8-10 M to 18 M, replace guesswork on the first run.
• Arrives ready to clamp. Every bit is boxed on its own, so the 1/2 in shank and the ground edge reach the machine unbumped.
• No dead end on an odd size. Customization is supported, so a diameter outside the listed code needs a quote, not a new supplier search.
• Reordering stays simple. The code 2-1x2-1 is printed on the box, so the second order is one line instead of a description.

Yes. The code matches the box label — 1/2 in shank by 1/2 in cutting diameter, which is 12.7 mm by 12.7 mm. Measure your collet before ordering, because a worn 1/2 in collet will not hold the bit at 18,000 r/min.

Two. Two cutting edges set 180° apart leave half the head open for chip escape, which is what keeps a deep groove from being recut and burnished on the second pass.

Tungsten steel. The blade material on the data sheet is tungsten steel and the shank is high speed steel, so the wear part is the edge and the load-bearing part is the shank.

Start at the lowest published setting, 18,000 r/min. The data sheet gives a 6 mm head 8-10 M at 18,000, 12 M at 21,000 and 14 M at 24,000, and an 8 mm head 10-12 M, 14 M and 18 M. Raise feed only while the chips come out clean.

Yes — the data sheet lists it for woodworking drilling machines. Fit is decided by the collet rather than the machine plate: the bit carries a 1/2 in (12.7 mm) shank, so the machine needs a 1/2 in collet that is clean and unworn.

Yes. Other sizes are available and customization is supported, so send the diameter and length you need, or the code printed on the bit you are replacing, and it is quoted.

Softwood, hardwood and composite board are all listed. It is a straight bit, so it cuts grooves, rebates, dadoes and flat clearing passes; shaped profiles need a shaped bit.

Each bit ships in its own plastic box. Price is quoted per order, so send the code 2-1x2-1, the quantity and any other sizes you want in the same message.