Boring Zentriehülsen set
Fits for M6, M8, M10, M12
Demolished screws or stud bolts are often very hard to drill out
The precise centering with a graining and the subsequent drilling is usually very difficult
Often the mounting thread is damaged by oblique drilling
As a result, the required holding torque of the thread no longer exists
The bore holes provide a central bore of the torn screws
The component to be released is initially completely disassembled
The torn off screw stub is ground flat
The corresponding center sleeve is inserted into the component to be fastened from behind
The component is fixed again with the still intact screws until the centering sleeve rests flat with the collar
A 4 mm drill is used to drill a base hole into the tapped screw
In doing so, the drill is positively forced into the specially hardened sleeve and thus can not run
If the bottom hole is located in the center, the hole can be drilled with larger drills until a left borer is used
The thread can also be drilled up to the core diameter and subsequently cut
Manufacturer Nr.: SSW Schmack 112210
EAN: 4260041797062