Machined from selected alloy tool steel and heat treated for maximum toughness and quality of impression. With tapered points and additional mark to aid accurate positioning. Each pucnh indervidually marked with size and character identifier. Matt satin finish. Guaranteed tip hardness 58 - 60 HRC. Shank size 6 x 65. Packed per set in strong plastic box. 9 Piece set 0-9