Record Power Coronet Hawk 16 mm (5/8") 4-Prong Drive Centre, 2 Morse Taper (103810)Record Power's traditional 4 prong drive centre is designed to give a strong hold to timber using the principle of opposing tooth profiles. The central point of the tool secures the drive centre in place, the four teeth around it grip the timber securely and the opposing tooth pattern ensures the wood fibres are pulled together to reduce the chance of splitting. The 22 mm diameter drive centre is ideal for use on large square or round profiled spindle