🌟 Tungsten STARVAST: Ultimate Polishing, Engraving, and Drilling Solution Review

MATERIAL -- Tungsten Carbide Rotary Burrs are made of solid tungsten carbide. SIZE -- The length of die grinder bit about 60mm; Shaft - (6MM) 1/4 Inch; Outer diameter of the tip - 10mm; Tip blade length 10mm - 25mm; Ball shape length - (60MM); Suit for (6MM) 1/4 Inch, Electric die grinder. 【Cutting Bur Type & Shape】 Double Cut; Oval, Cylindrical, Tree, 14 Degree Taper, Ball. 【Hardness】 These rotary burr set machining hardness reach > HRC70. They could be used to process all kinds of high hardness metal (including all sorts of hardened steel) and non-metal (such as marble, jade bone). 【Application】 Carbide rotary burr set suitable for processing these metal and non-metal, such as cast iron, cast steel, bearing steel, high carbon steel, chrome-nickel alloy, bronze, brass, and ceramic tile, marble, jade, bone, etc.