Cut your cycle times — without breaking tools.
Most slow jobs aren't slow because they have to be — they're slow because chatter, a conservative tool, or guessed speeds and feeds force you to back off. The right tool lets you run hard and stay there.
Why it happens — and the fix
1Conservative, guessed speeds and feeds
RobbJack's calculator is built on 67 years of tested cutting data, so you can push metal-removal rate with confidence instead of leaving capacity on the table — it gives roughing and finishing numbers per tool and material.
2The wrong tool for aggressive removal
For the most aggressive roughing in stainless, super alloys, Inconel, titanium, and steel to 40 HRc, the SPS Super Python's variable-helix, all-center-cutting geometry was built for it. For the highest-HP/RPM aluminum work, the FMHV high-velocity line maxes out modern machines.
3Chatter forcing you to slow down
If chatter is the limiter, you're leaving speed on the table. Variable-helix geometry and Mirror Edge eliminate the vibration so you can run fast and keep a good finish — RobbJack high-velocity tools have run aluminum at 450 IPM with no chatter.
4Too many short tools and tool changes
In aluminum up to a 4:1 length-to-diameter ratio, a single Mirror Edge tool can do all the machining chatter-free — no slowing down for stickout, fewer tool changes, and a shorter overall cycle than juggling lengths.
5Not using high-efficiency tool paths
In tough materials, trochoidal (peel) milling lets you run high feeds at full depth with a light radial cut, spreading wear over the whole flute. RobbJack's high-efficiency XF finishers and calculator support it.
The proof
- 41 hr → 1 hr
- aluminum part, prior tooling vs RobbJack
- 45 min → 9 min
- steel part — 500% more metal removal
- Up to 1000%
- MRR increase in Inconel 718 (SPS)
Dig deeper
Not sure where to start?
Send us your toughest part. Our application engineers will recommend the tool and the numbers.