Pre-drill/centering drill for countersinks
Pre-drill for countersinks
Pre-drill for countersinks to drill and countersink in one step. The pilot drills have a clamping surface for secure clamping in the counterbore. Due to the tungsten carbide tipping and the CNC diamond grinding they also have a very long service life.
AØ: Outside diameter
SØ: Shaft diameter
NL: effective length
GL: Total length
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