Sprenger Diamond Bit Paste Used to bring back the shine on your used Sprenger bits. Can be used on copper mouthpieces. £10.00 Quantity: at £10.00 each Add To Basket 0 in your basket View Basket Checkout A fantastic product. Made by Sprenger. Will bring the sparkle back to your used KK bits. Can be used on any Copper, stainless steel items. Non toxic.