Dura Maxâ„¢ Heavy Duty Rivet Spinner The heavyweight champion of hand-operated rivet spinners. Designed to meet all your rivet-spinning needs. FEATURES * Spins all chain rivets up to .404" pitch * Adapts easily for spinning 3/ 4" rivets when used with the 3/ 4" -pitch adapter kit. SPECIFICATION 24549-si Dura Maxâ„¢ heavy-duty rivet spinner - metric Replacement Parts NOTE: Use SAE parts only on obsoleted spinner P/ N 24549-s, use metric parts only on spinner P/ N 24549-si.