Spirit River's machining is unsurpassed and the plating is fantastic. Spirit River is proud to be know as the leader in quality on all our brass products like these cones. Each cone is machined on a screw machine one at a time. All are then tumbled to remove many of the machining marks...then they plate them with a high quality finish. Their process takes longer & yes it will cost slightly more...but you should expect the best when you take your precious time to tie your own flies. These are ideal when streamers, sculpins, and deep running minnow patterns require more weight than Brite Beads provide. Their cone heads are just the ticket.