You machine PCB, aluminum, copper, brass and bronze with desktop CNC and deal with clogged flutes, bit runout and coating failure on every project. You need a carbide bit built exclusively for non-ferrous metal and PCB machining—no compromise for wood or plastic, just precision and durability for the materials you work with daily.
WKSTOOL 1/8 solid carbide o-flute upcut end mills solve these pain points with metal-specific engineering. The o-flute spiral geometry pulls chips out of cuts at high speed, eliminating buildup on soft aluminum and copper that causes rework and broken bits. The precision-machined shank fits ER11 collets with zero runout, so your 3D carving on bronze and engraving on PCB have consistent, clean edges every time. The industrial PVD coating resists wear on brass and bronze, holding sharpness at spindle speeds up to 10,000 RPM for long tool life and fewer changes.
These bits are not universal multi-material tools—they are optimized for the non-ferrous metals and PCB that desktop CNC machinists, hobbyists and small fabricators work with most. You load the 1/8 shank into your 3018 or 1610 CNC router, set your cutting parameters, and machine with confidence: no chip clogging, no runout, no coating failure. The 4pcs pack ensures you have a replacement on hand for continuous prototyping, fabrication and 3D carving.
Every WKSTOOL o-flute end mill is machined to industrial tolerances, with a solid tungsten carbide substrate that outlasts standard HSS bits on non-ferrous metals. You get repeatable results on PCB, aluminum, copper, brass and bronze—no more inconsistent cuts or wasted material.
Parameter Value Material Ultra-fine grain (0.2μm) tungsten carbide (WC-6% Co) Coating Industrial PVD coating Shank Diameter 3.175mm (1/8”) ±0.002mm (Class Z2) Cutting Diameter 3.175mm (1/8”) Cutting Length 17mm Overall Length 38mm Helix Angle 30° Flute Type O-Flute (Single Flute) Upcut Spiral Compatibility ER11 collets, 3018/1610 desktop CNC Machinable Materials FR4 PCB, Al 6061, Cu C110, Brass C260, Bronze C510 Spindle Speed Range 5,000–10,000 RPM Package Quantity 4 Pcs