Ceramic aluminum oxide is a self-sharpening grit that is harder, tougher, and lasts longer than aluminum oxide, and is for use with heat-sensitive materials like aluminum, stainless steel, and titanium Type 29 angled style is more aggressive than type 27 style and is used for weld blending, deburring, deflashing, edge chamfering, stock removal, and grinding and finishing in one step Phenolic backing prevents disc from scratching the workpiece and offers durability and reinforcement of the disc Designed for use at a 15- to 35-degree angle to dissipate heat Threaded hole for attachment to grinding tools The Weiler Saber Tooth type 29 angled-style ceramic aluminum oxide abrasive flap disc has a phenolic backing for reinforcement and a threaded hole for attachment to grinding tools, and works well on curved surfaces. The ceramic aluminum oxide abrasive is self-sharpening and more durable than aluminum oxide, which makes it suitable for fast material removal rates and aggressive grinding on heat-sensitive materials such as aluminum, stainless steel, and titanium. Applications include weld blending, deburring, deflashing, edge chamfering, stock removal, and grinding and finishing in one step. The disc has an angled shape for maximum workpiece contact and is commonly used with right-angle grinders at a 15- to 35-degree angle to dissipate heat. Threaded hole fastening type indicates a disc with a female-threaded central hole that twists onto a threaded arbor. Abrasive flap discs are made from overlapping pieces of coated abrasive attached to a hub. They help reduce finishing time and cost by grinding and finishing in the same step, such as when removing a weld bead and smoothing the workpiece around the weld. Flap discs are coated, meaning an adhesive is used to attach the abrasive grains to a backing of paper, plastic, or cloth. The action of a flap disc is much like that of a sanding disc: the grinding or polishing occurs on the face of the disc. They are used for a variety of applications from shaping a part to fine finishing, depending on the grit size. Low grit numbers like 40 are coarse (with fewer, larger grains) and remove excess material and shape parts. High grit numbers like 400 are fine (with more, smaller grains) and help create a smooth surface finish. Weiler manufactures precision brushes, abrasives, and maintenance products. The company was founded in 1898 in Germany, is headquartered in Cresco, PA, and is International Organization for Standardization (ISO) 9001 certified.