Most turkey hunters learn how to call turkeys with a friction call. This includes box calls, slate or pot-and-peg calls and push-button calls. All of these calls create yelps, putts and purrs by rubbing one object against another. On a box call and a push-button call it’s two sections of wood rubbing together to make turkey sounds. On a pot-and-peg call the end of the striker is drawn across slate, glass, aluminum or a similar material. Regardless of the friction call used, you have to properly prep these calls to make them sing those sweet nothings to a lonely gobbler. In this video, Mark Olis will prep several brand new Knight & Hale (K&H) calls. Watch as he shows you how to prep K&H’s revolutionary new Switchblade Box Call and the new Dual Threat Glass and Slate call.