Multi Purpose: Widely used for metalwork, tool making, engineering, model engineering, wood carving, jewellery making, welding, chamferring, casting, deburring, grinding, cylinder head porting and sculpting Good Quality:Good processing quality, high finish. Can be processed into a variety of high-precision shape mold cavity Shape：Double cut Ball shape SD-3L6, Size: 6 5/16" Total length, 1/4" shank diameter, 3/8" cutter diameter, 15/47" length of cut Long Life: Made of heat-treated Solid tungsten carbide YG8 that lasts 8 times working life Durability than HSS tool，Suitable for machining various kinds of metal material including ≤HRC65 hardened steel Packaging：Packed with a transparent plastic tube for safety storage and protection › See more product details