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10pcs Rotary Files Burr Rasp Drill Bit Electric CNC Engraving Carving Grinding Heads Abrasive Tools
Feature:
Application of high-speed steel electric grinder head: mainly used for processing grooves and surface polishing of narrow, deep metal materials such as copper, iron, aluminum, alloys, etc. below medium hardness. It can also be used for milling of non-metallic materials such as plastics and wood. When cutting stainless steel materials, high-speed steel or high-speed steel grinding heads with high nitrogen should be used.
High-speed steel grinding head features: the cutting edge is around the outer circle, which is used to polish the surface of the outer circle and process the narrow groove.
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 strong metal red hardness and wear resistance. At high speeds, the super fatigue resistance of high speed steel is exerted. So as to extend its service life and achieve the purpose of saving time and energy consumption for customers.
Heat treatment process: high-speed steel saw blade: generally quenched in a salt bath at 1205~1215℃, the metallurgical level of the quenched structure reaches 10-11, and then graded isothermally, hot clamped, and tempered 4 times. Overheating is not allowed in the tempering process. Hardness 64~66.5HRC.

Specification:
Material: High speed steel
Packing size: 10*6.5*1cm/3.94*2.56*0.39\\\"
Quantity: 10pcs

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-3mm measuring deviation due to manual measurement.

Package Content:
10 X Drill Bits

10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads
10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads
10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads
10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads
10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads
10pcs Rotary Files Burr Rasp Drill Bits Electric Engraving Grinding Heads

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