Finger bits are the workhorse for CNC sink cutouts, radius edges and inside corners on granite and engineered stone. Wrong diameter, wrong bond or wrong feed rate shows up as chatter marks and short bit life.
Spec checklist before you order
- Shank diameter and length matched to your spindle collet and Z clearance
- Working diameter and usable length for the deepest pocket you run
- Bond hardness for granite vs quartz: harder stone needs a freer bond
- Wet cutting ports and recommended coolant flow for your spindle RPM band
- Segment layout (continuous vs notched) for roughing versus finishing passes
Run a light finishing pass after roughing instead of forcing one aggressive feed—bit life and edge quality both improve. Protec Tools supplies CNC finger bits and related diamond tools for fabrication shops and private-label distributors. Share your spindle RPM, material mix and target edge radius when requesting a quote so bond and grit can be tuned.
Related Protec Tools pages: Diamond Blades Manufacturer, Diamond Core Drill Bits, Concrete Cutting Machines, Diamond Grinding Tools, OEM Manufacturing, Technical Info, Download Catalogue, Contact Us
Related products: Laser welded diamond blade, Sintered diamond blade, Diamond core drill bit, Diamond grinding wheel
