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The A4 Drilling Log Book is a 3-part NCR (No Carbon Required) triplicate pad, purpose-designed for accurate and reliable borehole and trial pit logging on site. Each page produces three simultaneous copies — ideal for keeping records on site, sharing with clients, and retaining in the office archive. Printed on durable NCR paper, the pad is robust enough for outdoor site conditions and provides a clear, professional format for recording all key geotechnical data. Available in packs of 50 sets (individual sets) or packs of 10 books, making it easy to stock up for long-term projects. Supplied by Geo Site Supply, the UK's trusted source for site investigation consumables and equipment.