Steel Shaft Butt Extension can be used to extend the playing length of any steel shafted club. These 12 inch long steel butt extensions feature an 8.5 inch parallel mid section that can be cut in the middle to create 2pc 4 1/4 inch extensions. Each section has a tapered end to fit perfectly inside the shaft being extended. Each extension has a 1 5/8 inch shaft insertion depth and is chrome plated to prevent rusting. Steel Extension .580 for Steel