End Mill CNC Router Bits Wood Metal Cutter Endmill Tapered Ball Nose End Mill

A coated double-edged spiral tapered ball nose end mill for CNC routers, cutting wood and metal. It comes in four ball radii (R0.5, R0.75, R1.0, R1.5), three shank diameters (4, 6, 8mm) and three total lengths (50, 75, 100mm). The alloy body has 2 flutes. To confirm fit, measure your router collet and compare it to the shank diameter, then check the blade length (20.5, 30.5, 45, 60mm) against the depth of cut your job needs.

Tapered walls flex and the ball tip dulls when you push a finishing pass too deep. The result is chatter on curved surfaces and a stepped finish that needs hand sanding. A double-edged spiral taper ball cutter reduces that deflection because the tapered body puts more material behind the cut.

This is a coated double-edged spiral taper ball cutter made from alloy. Ball radii are R0.5, R0.75, R1.0 and R1.5. Blade lengths are 20.5, 30.5, 45 and 60mm. Shank diameters are 4, 6 and 8mm, and total lengths are 50, 75 and 100mm. It fits CNC routers that accept those shank sizes. Confirm fit by measuring your collet and checking the blade length against your deepest pass.

Check the collet for wear and seat the shank to the full depth before tightening. With 2 flutes, chip clearance is open, so keep the feed steady and clear dust as you cut. The ball nose leaves a rounded profile on 3D contours, and the taper adds rigidity when the cutter reaches deeper than a straight bit allows.

Customization is supported, so specify the radius, shank, blade length and total length you need when you enquire. Send your machine collet size, the radius and blade length you want, the material you are cutting, and the total length. That lets the supplier match the cutter to your job without back-and-forth.

What the specification fixes, and what it leaves to the machine:

• Deep 3D contouring — A tapered body with a ball nose reaches into deep 3D shapes where a straight bit would rub the side wall.
• Collet fit check — Shank diameters of 4, 6 and 8mm let you match the cutter to your router collet before ordering.
• Finishing pass control — Two flutes clear chips from the cut so the ball tip keeps contact on finishing passes instead of recutting.
• Ball radius choice — Four radii (R0.5, R0.75, R1.0, R1.5) cover fine engraving through to broader rounded contours.
• Reach versus rigidity — Blade lengths of 20.5, 30.5, 45 and 60mm let you pick the shortest reach that clears your deepest pass.
• Coated cutting edge — The coating on the alloy body covers the cutting edge, which is the wear point on abrasive wood and metal jobs.
• Mixed-material use — The same cutter is intended for wood and metal, so one setup can move from a wood blank to a metal part.
• Spiral chip flow — The spiral flute path lifts chips away from the ball tip, which matters when cutting slots and deep pockets.
• Total length options — Total lengths of 50, 75 and 100mm let you match the cutter to your router's reach and clearance.

What changes on the shop floor when the right part goes back in:

• Less deflection on deep cuts. The tapered body carries more mass behind the ball tip than a straight cutter, so the tip stays on line when you cut deeper than a short bit allows.
• Fewer sanding steps. A ball nose leaves a rounded profile on 3D contours, which reduces the sharp transitions that need hand work after machining.
• One bit across materials. Because the cutter is intended for wood and metal, you can keep one setup for mixed jobs instead of changing tools between materials.
• Chip clearance that holds. Two flutes leave room for chips to clear the ball tip, so the cutter keeps cutting instead of recutting dust in pockets and slots.
• Fit confirmed before you buy. With shank diameters of 4, 6 and 8mm, you can measure your collet and order the size that seats fully, avoiding a loose or oversized shank.
• Reach matched to the job. Blade lengths from 20.5 to 60mm let you choose the shortest reach that clears your deepest pass, which keeps the cutter rigid.
• Reorder without guesswork. Customization is supported, so you can specify radius, shank, blade length and total length and get the same cutter for the next run.

Measure your collet and match it to the 4, 6 or 8mm shank. The shank must seat fully, so check the collet size before ordering.

Start with the smallest radius that covers your detail. R0.5 gives the finest detail, while R1.5 covers broader rounded contours.

Choose the blade length that clears your deepest pass. Blade lengths are 20.5, 30.5, 45 and 60mm, and the shortest reach that fits keeps the cutter rigid.

The cutter is intended for wood and metal, so one bit can move between materials. Keep the feed steady and clear chips as you cut.

Two flutes leave open space for chips to clear the ball tip. That helps in slots and pockets where a tighter flute count would recut dust.

The body is alloy with a coating on the cutting edge. The coating covers the wear point on abrasive wood and metal jobs.

Customization is supported. Send your radius, shank diameter, blade length, total length and the material you cut when you enquire.

Check the 50, 75 and 100mm total lengths against your router's reach and clearance. Pick the shortest total length that clears your workholding.