Kramer's Antique Improver is a product we've used from the beginning to clean and restore vintage saw handles, and for that matter, any antique wood you want to rejuvenate. A little goes a long way. Simply use an old t-shirt or a 3M pad to rub it into the wood across the grain to soak it well into the pores. Once you completely cover all surfaces, wipe it down really well and let it dry before finishing. This is a great turpentine and beeswax-based product applicable for any antique wood finish you want to bring back to life.