Check the listing for details. OFF SET BORING HEAD MICROMETER INDEX MILLING. Condition: Used. Listed at 269.00 USD. The product is an Offset Boring Head Micrometer Index Milling tool, designed for precise measurements and machining in CNC, metalworking, and manufacturing industries. This tool features an offset design for improved access to hard-to-reach areas, making it ideal for accurately measuring and milling complex parts. The micrometer index allows for precise measurements and adjustments, ensuring high-quality results for various machining tasks.