Machinists ask me all the time, “When do I go fast and when should I go slow with a single flute end mill?” Well, as you can imagine, there are a lot of variables at play regarding feed rates for single flute end mill, but let’s try to break it down.
DATRON Single Flute End Mill: exceptional for efficient chip evacuation and high feed rates.
Slow Feed Rates for Single Flute End Mill
Slow (60″/min) – Finishing – If you need an exceptional quality in the finish of a floor or wall, it helps to slow the machine down to take a fine chip and decrease cutter load/cutter deflection.
![](https://www.datron.com/cdn-cgi/image/width=585,height=288,fit=crop,quality=70,gravity=auto,sharpen=1,metadata=none,format=auto,onerror=redirect/wp-content/uploads/2022/11/blog-Feed_Rates_for_Single_Flute_End_Mill_Finishing.jpg)
Medium Feed Rates for Single Flute End Mill
Medium (120″/min) – Slotting – Something a single flute does particularly well is slotting, which is a tool path that has 100% of the tool diameter engaged in the material. Using a proper depth cut (25% of tool diameter), you can cruise along at a decent pace without worrying about clogging up on chips.
![](https://www.datron.com/cdn-cgi/image/width=585,height=288,fit=crop,quality=70,gravity=auto,sharpen=1,metadata=none,format=auto,onerror=redirect/wp-content/uploads/2022/11/blog-Feed_Rates_for_Single_Flute_End_Mill_Slotting.jpg)
Fast Feed Rates for Single Flute End Mill
Fast (180″/min) – Traditional Roughing – When you are using a normal milling strategy, in the range of 33-50% depth of cut (2-3mm) with a 50-70% stepover, you can be fairly safe kicking the speed up, just keep an eye on your spindle load.
![](https://www.datron.com/cdn-cgi/image/width=585,height=288,fit=crop,quality=70,gravity=auto,sharpen=1,metadata=none,format=auto,onerror=redirect/wp-content/uploads/2022/11/blog-Feed_Rates_for_Single_Flute_End_Mill_Roughing.jpg)
Very Fast Feed Rates for Single Flute End Mill
![](https://www.datron.com/cdn-cgi/image/width=585,height=288,fit=crop,quality=70,gravity=auto,sharpen=1,metadata=none,format=auto,onerror=redirect/wp-content/uploads/2022/11/blog-Feed_Rates_for_Single_Flute_End_Mill_Trochoidal_Roughing.jpg)
Extremely Fast Feed Rates for Single Flute End Mill
Extremely Fast (300″/min) – Shallow roughing – If you are taking off less than 10% depth of cut (0.60mm), then you should be safe cranking the feed way up. With such a shallow cut, you won’t have to worry about overloading the tool or spindle.
![](https://www.datron.com/cdn-cgi/image/width=585,height=288,fit=crop,quality=70,gravity=auto,sharpen=1,metadata=none,format=auto,onerror=redirect/wp-content/uploads/2022/11/blog-Feed_Rates_for_Single_Flute_End_Mill_Shallow_Roughing.jpg)