2 Flute Straight End Mill - 1/8 in Shank Solid Carbide CNC Router Bit, 1-3.175mm Cut Diameter, 4-32mm Flute Length

This 2 flute straight end mill is a solid carbide CNC router bit with a 1/8 in (3.175mm) shank for slotting, pocketing, profile cutting and engraving. The straight flutes cut a flat-bottom slot and leave crisp edges in wood, sheet goods and plastics.

It is sold as a single bit: pick the cutting diameter and flute length that match your material thickness. Short flutes are stiffer for fine detail; long flutes cut deeper in one pass.

Specifications

• Shank: 1/8 in (3.175mm), fits 1/8 in collets on desktop CNC routers and engravers
• Material: solid carbide
• Flutes: 2, straight flute, flat end
• Cutting diameters: 1mm, 1.5mm, 2mm, 2.5mm and 3.175mm (1/8 in)
• Flute (cut) lengths: 4mm to 32mm depending on size
• Overall length: 38mm on most sizes
• Materials: wood, plywood, MDF, acrylic, PVC, EVA and foam

Choosing a size

Each option reads diameter x cut length. For example, "3.175mm Dia x 17mm Cut" cuts a 1/8 in wide slot up to 17mm deep. Choose a cut length a little longer than the depth you need, and keep the flute as short as possible for less deflection.

FAQ

Will this fit my desktop CNC router?
Yes, if your spindle uses a 1/8 in (3.175mm) collet, which is standard on most hobby CNC routers and engravers.

Straight flute or spiral end mill?
Straight flute bits leave a clean top edge in plastics and laminated sheet; spiral upcut bits clear chips faster in deep wood cuts.