SHARPRO O Flute Upcut Spiral Router Bit, 1/4 Shank, 1/8 Cutting Diameter — Carbide CNC Router Bit for Aluminum, Plastic, Wood

Meet the SHARPRO O Flute Upcut Spiral Router Bit, a versatile carbide single flute tool designed for a range of handheld routers and CNC machines. With a 1/4 inch shank and a 1/8 inch cutting diameter, this bit is built to handle materials from delicate Plexiglass to sturdy plywood, offering consistent performance across aluminum, plastic, acrylic, and various woods. The 12 mm cutting length and 50 mm overall length (OVL) provide reach for deeper profiles while maintaining control on small tasks. This bit is crafted to balance durability and precision, helping you bring ideas to life with confidence.

Performance you can rely on starts with geometry and finish. The 25 to 28 degree helix angle, together with a mirror polished surface, helps reduce sticking and yields smoother cuts. A larger spiral chip space complements high precision, delivering accuracy within a tight tolerance of ±0.02 mm and enabling efficient chip clearance during work. This combination aims to minimize drag and maximize edge quality across different materials.

Versatility, compatibility, and quality you can trust

• Application range includes aluminum, Plexiglass, plastic, acrylic, and woods such as softwoods, solid wood, plywood, and MDF; 12 mm cutting length and 50 mm OVL.
• Smooth machined surface with a 25–28° helix and mirror polish for smooth, non-stick cuts.
• Large spiral chip space with tight tolerance within ±0.02 mm for precise cutting and fast debris removal.
• Compatible with BOSCH, Dewalt, Milwaukee handheld routers and traditional CNC milling or engraving machines.
• SHARPRO quality backed by automated production and unit level serial codes for traceability.

Real world use and benefits

In practical use, you may experience cleaner edges and more predictable results when routing aluminum, Plexiglass, or acrylic, as well as softwoods to plywood. The extended reach from the 50 mm OVL supports deeper profiles, while the 1/8 inch cutting dia offers controlled material removal for detailed work. The combination of carbide hardiness and the upcut spiral design aims to deliver steady feed rates and reduced edge pull, making it a reliable choice for hobbyists and professionals pursuing precise finishes.

Note that outcomes depend on your machine setup, feeds, and material. The features described here may help you achieve smoother cuts, better chip management, and clearer edges, but results will vary with tool wear, material grade, and operator technique.