"counterbore" in German counterbore Planeinsenker Senker Stirnsenker Senkung Detailed translations for "counterbore" counterbore 1. technology counterbore der Planeinsenker{masculine} counterbore der Senker{masculine} counterbore der Stirnsenker{masculine} 2. other counterbore(also: descent, reduction) die Senkung{feminine} English synonyms for "counterbore" counterbore {n} countersink countersink bit