Boating Boat Engine Parts, Boating & Sailing, Sports & Fitness, Sports & Outdoors, Turning Point Propellers Turning Point Propellers Hustler Aluminum Propeller 4-Blade Review by HoneyBeetle January 20, 2019 No Comments Combine Turning Point’s innovative designs with quality metals and you’ve got an amazing propeller. Express propellers are made from 15-5 stainless steel. This metal gets harder and stronger with age.