Geared chuck suitable for most manufacturers' rotary, hammer and air powered drills. Features 3/8" x 24UNF threading for secure mounting. 10mm maximum capacity 3/8" x 24UNF thread Geared operation Universal compatibility Draper part 75290 Draper Tools is a leading UK hand tools and power tools brand, supplying quality trade tools to professional tradespeople and DIY enthusiasts for over a century. Professional-grade tools designed for the demands of daily trade use — engineered for durability and precision to get the job done right first time. Product reference:Part number: TH5010559303175. EAN: 5010559303175. APM Plumbing & Electrical — West London's trade electrical and plumbing merchant. Visit us at our Acton trade counter or order online at apmi.uk. Call us on 020 8702 8080.