Captains of Crush® No. 4 Gripper Certification

Who's Who


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

Joe Kinney

Nathan Holle
David Morton

Tommy Heslep
Magnus Samuelsson

Get certified:  Rules for Closing and Certification.

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.

Return to IronMind's Grip-Tech Hub.

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