Product Description The latest Mr. T Ferrule Tool design features a durable aluminium sleeve with a hard ABS plastic handle. The ergonomic, T-shaped handle also features finger moulds underneath the handle for a more comfortable grip when installing ferrules. To install ferrule, place the butt end of the shaft on the floor and drive the ferrule on by hand; it will stop one inch from the tip. Then use the hosel of the clubhead to drive the ferrule down the shaft tip penetration depth. Works on all conventional iron and wood shaft tips (.335″ to .370″) including tapered iron shafts.