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GN 300.4
Adjustable handles
with torque amplifier, zinc alloy and steel
Main specifications
Lever body
Die-cast zinc alloy, epoxy resin coating, RAL 9005 black colour, matte finish.
Distance bushing
Nitrided tempered steel with balls allowing a greater efficacy of the clamping force.
Standard executions
Black-oxide steel clamping element and retaining screw. Steel return spring.
Retaining screw with six-lobed socket to fit TORX®* (see communication attached).
- Threaded hole.
- Threaded screw, length as shown in the table.
General information
Features and applications
Adjustable handles GN 300.4 allow a higher tightening clamp force.
The clamping element is not in direct contact with the plane to be clamped. Clamping is made by the distance bushing with large base, which does not rotate on the plane. The bushing contains a set of balls which reduce to a minimum friction between the part which rotates with the lever during clamping and the distance bushing.
Other executions
Special executions on request
Lever in different colours.
Instructions of use
Instructions of use
For clamping, lift the lever to disengage the clamping device teeth and bring it back to start position. By releasing the lever, the return spring automatically engages the teeth.
If the lever cannot make a 360° rotation, the clamping element can be easily screwed by means of the six-lobed socket front head screw (after having disengaged the lever).
* Registered trademark by TEXTRON INC.
Models all rights reserved in accordance with the law. Always mention the source when reproducing our drawings and photos.
