HIGH FEED MILLING
extra tough high feed tool series
- High-Feed Cutter Bodies
Through-hardened, extra-tough tool steel for optimum strength
Surface hardened for extra wear and chip-welding resistance
Machined after hardening for excellent runout
Standard and long-reach bodies available
High-Feed Inserts
Strong design allows high feed rates in all materials
Positive clearance provides excellent ramping and helixing
Multiple geometries for smooth cutting or strong edge conditions
Simple grade variety provides strong performance in all materials
.jpg)
.png)
How does it work?
High-feed milling creates significant chip thinning due to an extreme lead angle. Feed rates must compensate for this to maximize productivity. The figure at left shows an example of this condition.
Adjusting feed rates to account for chip thinning creates cutting conditions that provide very high feeds (IPM), but at lighter depths of cut (DOC). See the specific operating instructions for each size of high-feed insert to optimize these cutting tools.
Multiple sizes - Multiple options
.jpg)
Mini-feed inserts have the smallest IC (inscribed circle) and smallest cross section.
.500" - 1.000" OD
8mm IC
3 usable edges
"D" cutting edge
.030" max. DOC
.jpg)
Mid-feed inserts have a stronger cross-section than the mini-feed, but are smaller than the heavy-feed.
1.000" - 3.000" OD
10mm IC
4 usable edges
"T," "D" or "F" cutting edge
.045" max. DOC
.jpg)
Heavy-feed inserts have the strongest cross-section of the line.
R4 Heavy-Feed Cutters & Inserts
1.250" - 6.000" OD
12mm IC
4 usable edges
"T," "D" or "F" cutting edge
.060" max. DOC

PRODUCT LINE DETAILS
Application Support
Great Tools for us is only half of the solution. We support direct engagement and personal training on the use and applications of our products. Whether you are a distributor, a novice operator or and industry expert working on the most difficult problems, we can help.

High Feed Video Playlist
Dozens of Training Videos for all Levels