Heavy duty rivet sets for rivet AN470 (Universal Head) and AN426 (Flush Head) rivets. Includes sets for AN470 rivets in sizes: 3/32", 1/8", 5/32", 3/16". One flush set is also included for flat head (AN442) or countersunk (AN426) rivets. Drop forged from 4130 steel and hardened to 48 Rockwell. Face electro-polished to a mirrorlike .5 micron finish. Blackened steel coating prevents rusting. **The flat head will need the 113M Retainer Spring to work properly. 1 lbs (0.5Kg) shipping weight.