Tools Carbide End Mills,6 Flute Square Milling CutterHigh Helix Angle for High Hardness Steel Finshing Milling Processing - 3/8 Shank (3/8-2.5" 1PCS)

Coating :All end mill set with Balzers PVD Coating,it is excellent resistance . | Design: High Helix Angle 50,Six cutting edges reduce cutting load of each edge, decrease cutting volume, with high RPM, Can achieve smoother cutting surface. | Material:HRC68 ultrafine grain tungsten carbide, toughness and hardness and wear resistance. Manufacturing:Five-axis high precision grinding machine, keep the carbide router bits Stable and controllable. | Quality Control:Each milling bit will be tested on the detecting instrument and laser a code. Application:The cnc mill set is greatly performance for finish machining. | Inch Size and Diameter Tolerance:Diameter 3/8 - Cutting Edge Length 1" - Overall Length 2.5" Tolerance:-0.00mm to -0.01mm.