For tightening or loosening chinrest screws 

Technical Details: Length 55 mm (2.15").

This high quality special clamp is ideal for gluing on the bridge of stringed instruments.
Because the impression plate is adjustable at height but totally fixable, the clamp can be easily adjusted for any needs. The guided movable tensioning arm is made from aluminium and has a ball-jointed swivel pad (direct pressure application upon closure), the fixed tensioning arm is made from special nickel-plated steel. Despite of the large opening the clamp is extremely light.


Technical Details: Jaw depth.

Clamp with precise guide for drawing cracks together at the edges of the top or back of stringed instruments. 3-D-adjustability (spring assistance), direct pressure application upon closure, 4 screws

Material: Aluminium 

Technical Details: Opening 12 mm (0.47"), depth 25 mm (0.98").

Special crack clamp made from flat brass material which combines sturdiness with tradidional appearance. 3 arms are adjustable for closing any cracks, the fourth arm can be adjusted in length. specially shaped and notched polyamide jaws fit the instrument exactly and carefully, the material is glue-repellent.

Material: Brass 

Technical Details: Span widths: ca. 335-455 mm (13.2"-17.9").

This single form clamp is especially used for the instrument manufacture. Distortion-resistant jaws made from hard plywood and lined with soft PVC distribute the pressure equally. They are guided by steel pins which avoid a shifting of the jaws and thus guarantee that the jaws press the parts together in a way that they match properly.

Material: Hard ply-wood 

Technical Details: Opening 60 mm (2.36").

This single form clamp is especially used for the instrument manufacture. Distortion-resistant jaws made from hard plywood and lined with soft PVC distribute the pressure equally. They are guided by steel pins which avoid a shifting of the jaws and thus guarantee that the jaws press the parts together in a way that they match properly.

Material: Hard ply-wood 

Technical Details: Opening 205 mm (8.1").

This single form clamp is especially used for the instrument manufacture. Distortion-resistant jaws made from hard plywood and lined with soft PVC distribute the pressure equally. They are guided by steel pins which avoid a shifting of the jaws and thus guarantee that the jaws press the parts together in a way that they match properly.

Material: Hard ply-wood 

Technical Details: Opening 275 mm (10.8").

Technical Details: Opening 155 mm (6.1").

Technical Details: Opening 155 mm (6.1").

This form clamp is mainly used for the instrument manufacture for gluing on the top or bottom. Hard wood jaws lined with soft PVC, thread integrated in the grip, nickle-plated steel spindles with "fast" 1/4 inch thread (ca. 42 pieces for one body)

Material: Hard wood 

Technical Details: Opening 140 mm (5.5").