Hartmann & Bender optimized the assembly-kits for Blow-Head-Arms. We integrated a T-Nut into our claping-devices, which reverses the clamping direction. This way, the Blow-Head-Arm is being pulled towards the socket, instead of being pushed away. Claping pressure is now being applied at the screw-profile and the downside of the Blowheadarm. This keeps the T-Nuts from breaking.