Captains of Crush® No. 4 Gripper Certification:
Who's Who

Official certification list for the No. 4 Captains of Crush® gripper




  • Joe Kinney (USA)


  • Nathan Holle (UK)
  • David Morton (USA)


  • Tommy Heslep (USA)
  • Magnus Samuelsson (Sweden)


  • Carl Myerscough (USA)



Get certified: Rules for Closing and Certification.

Captains of Crush song by Laing - play it here.

Meet our Captains of Crush grippers. Visit the IronMind e-store for CoC® grippers and Crushed-to-Dust! Grip Tools.

Find out more about hand strength and training with our Captains of Crush grippers; and take a look at John Brookfield's Grip Tips, for over 60 grip training exercises.

Captains of Crush Grippers: the gold standard of grippers cocbook-cover_hp