Carbide CNC Milling Cutters End Milling Cutter Wood Tool

Milling a curved part on a wood CNC router and getting a staircase off a square end mill? This is a ball nose milling cutter in φ12 x 70 x 125 mm — 12 mm shank, 70 mm blade, 125 mm overall — solid carbide, 2 flutes, blue coated. The round nose leaves a radius instead of a corner, the two wide flutes clear chips on soft stock, and the cutter weighs 0.18 kg. Price on request.

A shop milling curved work on a router keeps meeting the same three things: a square end mill leaves a staircase across the surface, the sanding that follows takes longer than the cut did, and a deep pocket packs its chips until the cutter loads up and snaps. This cutter is built in the size and geometry that answer all three.

It is a ball nose milling cutter in φ12 x 70 x 125 mm: 12 mm shank diameter, 70 mm blade length, 125 mm overall length, solid carbide through the body, blue coated on the flutes. The round nose puts a radius on the work instead of a corner, which is the geometry that 3D contouring, surface finishing, slotting and pocketing all ask of one tool.

The 2 flutes carry the chip. Two flutes leave more room between them than a 4 flute cutter of the same 12 mm diameter, so soft stock and deep passes move their chip out instead of packing the flute. Blue coating cuts friction on the rake face and holds heat down through high-speed machining, and it also keeps the edge from corroding between jobs.

Net weight is 0.18 kg, so a cutter of this length still sits light in the collet. Origin China. Customization is supported, and the price is on request.

What decides whether a curved surface ships or goes back to the bench:

• Ball nose, radius built in. The nose is a radius, not a corner, so a contoured profile comes off in shape, not in steps.
• Solid carbide end to end. 12 mm shank, 70 mm blade and 125 mm length are one piece of carbide — no brazed joint to fail.
• 2 flutes keep the chip moving. Two flutes leave more room than a 4 flute cutter of the same 12 mm diameter, so deep pockets keep clearing.
• Blue coating on the flutes. It lowers friction on the rake face, holds heat down at high-speed machining, and shields the edge in storage.
• 70 mm blade, 125 mm reach. 70 mm of cutting length under 125 mm overall gets to pocket depth without an extension holder.
• 12 mm shank, existing collet. The shank is 12 mm, so a spindle already holding a 12 mm collet needs a tool change only.
• 0.18 kg at the collet. 0.18 kg net weight keeps spindle load low for a cutter with this overhang.
• Four operations, one part. Contouring, finishing, slotting and pocketing all run on this one 2 flute ball nose.
• Custom forms are quoted. Customization is supported, so a length or nose form outside φ12 x 70 x 125 mm is priced on request.

On curved work the choice is usually sanding by hand, sending the job out, or buying another single-purpose cutter. What this one gives the buyer:

• A surface that ships, not one that gets sanded. The radius is in the geometry, so finish no longer depends on how long someone works the part.
• Fewer part numbers in the crib. Contouring, finishing, slotting and pocketing run on one 2 flute ball nose, so the drawer holds fewer sizes.
• Deep pockets without loading up. 2 flutes give the chip somewhere to go, so a pocket pass stops packing the flute and snapping the tool.
• The edge survives the drawer. Blue coating shields the carbide from corrosion as well as friction, so a stored cutter comes out clean.
• Reach from the tool, not the stack. 70 mm of blade on 125 mm overall keeps the holder short; every holder removed is runout removed.
• Fits the collet already on the spindle. A 12 mm shank and 0.18 kg go straight into the collet the router already carries.
• A reorder is one size string. φ12 x 70 x 125 mm is the whole identity of the part, so a repeat order is one line.
• Custom is a quote. Customization is supported, so a non-standard length or nose form is priced from the drawing you send.

φ12 x 70 x 125 mm — 12 mm shank, 70 mm blade, 125 mm overall. All three numbers sit on the size line, so collet size, depth of cut and reach can be checked before an order is placed.

Yes, if that collet is a 12 mm one. The shank diameter is 12 mm, so the cutter goes into a 12 mm collet with no adapter and no sleeve.

Because the chip needs somewhere to go. Two flutes leave more room than a 4 flute cutter of the same 12 mm diameter, so soft stock and deep passes clear their chip instead of packing the flute.

It mills curves. 3D contouring is the reason for the ball nose: the radius follows the profile instead of cutting a corner, so a curved surface comes off the tool without a stepped finish.

The whole cutter. The 12 mm shank, the 70 mm blade and the 125 mm length are solid carbide, so there is no brazed joint between a carbide tip and a steel shank.

It lowers friction, holds heat down and protects the edge. The coating is a layer on the flutes, so the edge keeps its form at high-speed machining and the carbide is also shielded from corrosion in storage.

Slotting, pocketing and surface finishing. Those three, plus 3D contouring, are the operations this 2 flute ball nose covers, so one part number carries four jobs.

Yes. Customization is supported, so anything other than the listed φ12 x 70 x 125 mm is quoted on request — send the size and the quantity for a price.