SPS Series.Engineered to win the cut.
RobbJack's highest-performance solid carbide end mills — more flutes, smarter geometry, and grades tuned to your material. Faster cuts, longer life, lower cost per part.
Up to 5×
tool life vs. standard geometry
Higher MRR
more metal removed per pass
Better finish
smoother walls, less polishing
Why machinists switch to SPS
SPS isn't a coating on a commodity blank. It's a complete system — substrate, geometry, edge prep, and coating — engineered together for the material you're actually cutting.
Optimized flute count & helix
More effective cutting edges and a variable-pitch helix that crushes chatter and stabilizes the cut at aggressive parameters.
Application-specific grades
Carbide substrate and coating matched to the material — not a one-grade-fits-all compromise.
Edge prep that lasts
Controlled edge preparation for predictable wear and consistent part-to-part performance you can schedule around.
Built for production
Repeatable, USA-ground, and stocked — designed to hold its numbers across a full run.
Don't take our word for it — put one in your spindle.
Tell us your material and application. We'll send the right SPS tool through your local distributor and help you dial in speeds & feeds to beat what you run today.