PRODUCT CATALOG
◆ | 10-piece wear-resistant twist drill with straight handle set (1, 2, 3, 4, 5, 6, 8, 9, 10MM) | ||||
◆ | Innovative M15 high-speed steel with cobalt, high vanadium and other elements, greatly improving the service life of the product | ||||
◆ | Surface underwent fine grinding after oxynitriding, effectively improving hardness and wear resistance | ||||
◆ | Innovative 123° apex angle design, effective increasing the cutting speed |
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