YINGHUA 10Pcs 5x17mm UP And DOWN Cut Two Flutes Spiral Carbide Mill Tool Cutters

10-piece 5x17mm tungsten steel cutters

This set supplies ten right-angle drill bits with a 5x17mm profile and two-flute spiral geometry. The tungsten steel construction targets CNC router operators who need compression cutting on wood-based panels. The up-and-down flute design reduces tear-out on both faces of the workpiece.

Compression geometry limits chip evacuation

The opposing flutes push chips toward the centre of the cut, so deep slots in dense material can pack if feed rates are too high. Solid hardwoods and abrasive particleboard dull the edges faster than soft plywood, narrowing the useful life of each cutter. The fixed 5mm shank diameter restricts use to collets or holders that accept that exact size.

Direct collet fit simplifies setup

Each cutter drops into a matching 5mm collet without adapters, so tool changes take seconds on most hobby and light-industrial routers. The most common error is running the spindle too fast for the small diameter, which generates heat and snaps the carbide. Users who neglect to secure the workpiece often see vibration marks on the bottom face.