Sharpen Your Borer Bits with this Handy Kit
Increment Borer Sharpening Kit contains the necessary items to sharpen your increment borer bits. One flat, tapered 4"L fine india stone; one conical 3"L tapered engraver's point stone; a pocket stone, 3"H x 7/8"W x 3/8"D; a 4 oz. bottle of oil for lubricating and cleaning stones; and a cork.