Nippelspanner professional quality, hardened and nickel coated Fits 3.23mm nipple price is for a Nippelspanner Professional quality, precision-sized spoke wrenches are hardened and nickel plated for long service Park Tool Spoke Wrenches are vinyl coated in one of four colors Indicating the size at a glance SW 0 is sized for 0.127 "(3.23mm ) nipples