This Round Ended Key Assortment is equipped with a plastic box for easy carry and , you can classify these feather keys in an organized manner, and take out and conveniently This Round Ended Feather Key Set has an exquisite workmanship to a great experience , and there's no burrs on the surface, and accurate, no worry about hurting your during the working process This Key has a widely use during . It is mainly used to fasten the equipment disassembled frequently, and it fits into a mating key-way to transmit between shafts and or bushings Combine a mix size of 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, satisfy your different needs. Rust-proof, wear-resistant, and high expanding . colour: black material: stainless steel size: 3 4 5 6mm Package Contents: 1 x Box of Round Ended Feather Key(included 140pcs) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.