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10pcs 1/4 Double-Cut Tungsten Steel Carbide Rotary Burr Die Grinder Shank BitFeatures:100% brand new high qualityMade of high-quality materials for durabilityHigh helix and large chip evacuation for fast metal removalSpecial brazed elements provide excellent braze strength Excellent impact strength Can withstand high strength Can withstand higher temperatures without failure Cutting close to centerFor electric or air tool drive (also used in machine tools) Electric or air tools usually rotate at 6000-50000 rpm, suitable for cast iron, cast steel, carbon steel, alloy steel, stainless steel and other materialsIn most jobs, the rotary burr set can replace the impeller, and the service life is 10 times that of ordinary high-speed steel burrs, and 200 times longer than the impeller.Double Cut Head: The double cut type cuts rows of knives in two intersecting directions for fast material removal and a rougher finishThey all have toughened and hardened steel shanks that provide rigidity and strength. This prevents bending and reduces vibration, which increases tool life.Product parameters:Material: tungsten steel solid carbideHandle diameter: 3mmCutting edge diameter: 6 mmHead: 1/4 inchHandle: 1/8 inchColor: Silver (as pictured)Size: As shown (approximately)Compatibility: Smaller rotation toolsPackage list:10 * Tungsten Carbide Rotary Burr Bits1 * Storage Box