10/20pcs HSS Routing Router Drill Bits Set for Dremel Carbide Rotary Burrs Tools Wood Stone Metal Root Carving Milling Cutter

Product Name: High Speed Steel Rotary File

Product size: The diameter of the handle is 3mm, and the total length is 40mm.

Please specify when ordering: name, diameter, thickness. High-speed steel electric grinding heads are generally suitable for polishing and cutting light metals, woodworking, plastics and other materials.

Features of high-speed steel grinding head: The cutting edge is around the outer circle, which is used to polish the outer surface and process narrow grooves.

Process characteristics: After repeated forging by air hammer, the grains (carbides) in the structure are refined, so as to achieve the effect of improving its super metal red hardness and wear resistance. The super fatigue fracture resistance of high-speed steel can be exerted at high speed. So as to prolong its service life, and finally achieve the purpose of saving time and energy consumption for customers.

Machining process characteristics: The surface of the blade is repeatedly rough and finely ground by CNC machine tools, so that the surface finish reaches a high standard. At the same time, the imported micro digital control machine tool is used to open the blade (triangular edge and radian edge).

Heat treatment process: High-speed steel saw blade: generally salt bath quenching at 1205-1215 ℃, the metallographic level of the quenched structure reaches 10-11, and then grading isothermal, hot clamping and tempering 4 times, the tempering process is not allowed to overheat, and finally The tissue hardness is 64-66.5HRC.

Application of high-speed steel electric grinding head: mainly used for groove processing and surface polishing of narrow and deep metal materials such as copper, iron, aluminum, alloy, etc. It can also be used for milling of non-metallic materials such as plastic and wood. When cutting off stainless steel materials, high-nitrogen or coated high-speed steel grinding heads should be used if high-speed steel is selected.