Produced using advanced technology on up-to-the-minute multi axis CNC machinery. Shanks made from SAE4140 steel hardened to Rockwell 45 HRC, renowned for its hardness and strength, and the tips are made from diamond ground micrograin tungsten carbide. A virtual mirror finish ensures a durable, clean cutter capable of holding a sharp edge and a thick Teflon coating enables the cutters to remain free of resin. All cutters are produced with high shearing angles.
|Shank Diameter||1/4" (6.35 mm)|
26 May 2018
Short life bitsBought 2 of these several months ago. Used in a router table fitted to a trend tk11 ( trend 1/4” collet) set at high rpm to cut a groove for the drawer box bottom panel. Groove was 5mm deep and cut in two passes. Both router bits sheared off just above the shaft within a short space of time. The wood was guided with feather boards to maintain pressure against the fence and fed slowly. I noticed the groove had sawtooth edges and there seemed to more vibration than usual. The sound of the router bit changed just before it sheared off. Fortunately I had another old 6.35mm bit from a different manufacturer and that cut without any issues to complete the job. So unless there is something significant out of alignment with the router, I suspect the two router bits had some sort of inherent defect. I probably wouldn’t buy these again.