Σφήνα μέτρησης ακριβείας. Ορείχαλκος επιμεταλλωμένος 1 - 11 mm
The measuring wedge allows for a very accurate direct reading of the gap width is in a range of 1 - 11 mm, if the plan has a sufficient depth.
The accuracy is 0.1 mm.
The reading on the top level corresponds exactly to the crack width.
Nickel-plated brass with knurled metal handle