1/4-28 Variable Flute Carbide Thread Mill

Our premium carbide AlTiN coated Variable Flute/Variable Index thread mills also have helical flute geometry. This dramatically reduces cutting pressure, vibration and harmonics, which results in higher feed rates, faster cycle times, better surface finish and accuracy, and lower cost per hole. Lakeshore cutters produce precision threads in a wide range of soft and pre-hardened steels to 58 Rc, stainless steels, aluminum, cast iron, titanium, inconel and difficult to machine exotics. Our thread mills offer an outstanding balance between performance and price.

Size	Shank Diameter	Cutting Diameter	Thread Length	Overall Length	Number of Flutes
1/4-28	3/16	0.180	0.50	2.0	3

Additional Information

feed and speed charts