Infinity Tools 1/4" Shank Ball-Nose Up-Cut Spiral Solid Carbide CNC Router Bit

Infinity Tools 1/4" Shank Ball-Nose Up-Cut Spiral Solid Carbide CNC Router Bit - View 3

$21.36 ~~$33.9~~ In stock

All Infinity Tools CNC Router Bits are engineered to meet the cutting challenge presented by man-made materials such as plywood, MDF, plastics and melamine. We use only the most premium sub-micron grade of C4 carbide and we grind each bit to a remarkable finish in state-of-the-art 5-axis computer controlled machines.

Our Tapered and Straight Upcut Ball Nose router bits are perfect for adding intricate details to signs and custom woodwork. Ideal geometry provides superior surface finish in plastics, soft metals, laminates, hard and softwood, plywood, MDF, and particleboard. These industrial quality CNC router bits will work long and hard in your shop.

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Customer Reviews (5.0 / 5 · 5 reviews)

Andrew ★★★★★ Oct 22, 2026

I was skeptical about spending more on a single bit, but the cut quality on plywood is night and day compared to what I was using. The sub-micron carbide edge held up through a full sheet with zero burning, and the up-cut design cleared chips so cleanly I didn't have to pause to vacuum once. This on

Violet ★★★★★ Oct 21, 2026

After fighting with chip-out on MDF for months, this spiral bit leaves edges so clean I don't even need sanding. The up-cut design clears chips fast through a full sheet of 3/4" ply.

Samuel W. ★★★★★ Oct 20, 2026

I've been running this bit through melamine and particle board all week, and the up-cut spiral clears chips so cleanly that I barely have to touch the edges with sandpaper. Definitely my new go-to for CNC work on materials like this.