HomeChucksPatriot Jaws3½” (89mm) Jaws (RSJ4) 3½” (89mm) Jaws (RSJ4) These jaws allow for even bigger bowls up to 16″ diameter to be held securely. Categories: Chucks, Patriot Jaws Find a Stockist Download Instructions 4 MB (pdf) Additional Information Warranty SKU Code Description/Type Size (in) Size (mm) Cat Page Number LRSJ4 3½" (89mm) Jaws 3½" 89mm Robert Sorby tool sets now come with a lifetime guarantee. Simply follow the link below and complete the registration form, ensuring that you include the set’s registration number. You will find this on the warranty card that came with your tool set. Note: this warranty does not cover wear through natural usage or damage caused by misuse or negligence. Please retain your receipt as proof of purchase. Register your product Share this on: Related products Stebcentres (STB) Compatriot Chuck (RSPCOM) Deluxe Hollow Revolving Centre 2 mt. (DRC/2) Eccentric Chuck (RS60)