This document summarizes Purros multi-spindle drilling heads. It describes two categories of heads: adjustable and fixed pattern. Adjustable heads can drill various spaced hole patterns while fixed pattern heads are customized for irregular patterns. The document lists specifications for various models including the number of spindles, drilling and tapping capacities, and adjustable versus fixed center distances. It outlines the advantages like efficiency, compact size, and precise tolerances. Inquiries from customers should include details like material, hole sizes, numbers, operations, and machine specifications.