{"title":"Bison Power Chucks","description":"\u003cp\u003eBison 3 jaw power chucks for CNC lathes: the hollow 2405-K-SGM series and the quick jaw change 2305 series.\u003c\/p\u003e\u003cp\u003eAll held in UK stock. Order before 4.30pm for same-day dispatch, or call our technical team on 01732 887334 for help choosing.\u003c\/p\u003e","products":[{"product_id":"2405-160-45ksgm","title":"Bison Hollow Power Chuck - 3 Jaw - 2405-K-SGM Series - 160mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Bison Hollow Power Chuck 2405-K-SGM is a robust 3‑jaw chuck designed for precise, repeatable workholding in turning and other high‑demand machining tasks. With a 160 mm body and a hollow bore, it handles longer parts and through‑spindle workflows with ease. It is compatible with Kitagawa jaws and ships with one set of SGM soft jaws, offering ready‑to‑use versatility out of the box. Note: the plain back requires an adapter to mount to your machine spindle.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThrough-Hole Design for Longer Workpieces\u003c\/b\u003e: The hollow bore enables longer parts to pass through the chuck, improving setup flexibility and chip clearance for through-spindle operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKitagawa Compatibility with Included SGM Soft Jaws\u003c\/b\u003e: Works with Kitagawa jaw systems and arrives with a ready‑to‑use SGM soft jaw set for quick, protective gripping of delicate parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThree‑Jaw with 60° Serrations for Secure, Repeatable Grips\u003c\/b\u003e: The three‑jaw configuration and precise 60° serrations deliver consistent bite and tight, repeatable holding across multiple cycles.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis chuck is designed to streamline your workflow: faster part changes, reliable grip across a range of materials, and compatibility that reduces the need for additional adapters or multiple tooling. The combination of through‑hole capability, soft jaws, and Kitagawa compatibility helps you achieve accurate workholding, minimize remakes, and maintain steady production even on complex or long parts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372122702,"sku":"2405-160-45KSGM","price":1273.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2405k_0df8f8bc-26f9-4448-900f-9acf7ca81685.png?v=1694170958"},{"product_id":"2405-315-91ksgm","title":"Bison Hollow Power Chuck - 3 Jaw - 2405-K-SGM Series - 315mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Bison Hollow Power Chuck is a high‑capacity 3‑jaw chuck with a 315mm gripping diameter, designed for through‑hole (through‑bar) machining on turning centers. Its hollow design and 60° serrations deliver secure, repeatable clamping for long or through‑bar work, helping you feed material cleanly and maintain part accuracy.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThrough-hole hollow design with 60° serrations\u003c\/b\u003e: Enables through-bar work and provides a secure, repeatable grip for long or hollow parts, improving setup speed and accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdapter-ready back with Kitagawa compatibility\u003c\/b\u003e: The plain back requires an adapter to mount on many machines, but remains compatible with Kitagawa jaws for fast tooling changes and broad system interoperability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncludes one set of SGM soft jaws\u003c\/b\u003e: Comes with a ready-to-use soft jaw set to protect delicate workpieces and enable quick, repeatable clamping right out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for reliability in busy shops, this chuck integrates smoothly with existing Kitagawa jaw systems, reduces changeover time, and supports consistent, high‑quality results across batches. Its hollow design combined with a secure 3‑jaw grip helps maintain tight tolerances while simplifying setup and maintenance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372155470,"sku":"2405-315-91KSGM","price":2696.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2405k_91e165b6-a37d-463b-bd0e-c29156a0f79a.png?v=1694170961"},{"product_id":"2305-200-45","title":"Bison Quick Change Power Chuck - 3 Jaw - 2305 Series - 206mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Bison 2305 Series Quick Change Power Chuck is a precision 3‑jaw workholding solution designed for reliable clamping on lathes and turning centers. It’s ideal for engineers, machinists, tradespeople, and dedicated hobbyists who need fast setup and repeatable grip, helping you tackle a wide range of parts with confidence.\n\u003c\/p\u003e \u003cp\u003e\nManufactured in Bison’s own factory in Poland, this 206 mm diameter chuck combines rugged construction with long tool life. It ships ready to use with an operating key and master jaws, and its quick‑change design lets you replace the jaws in under one minute, reducing downtime and keeping production moving.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRapid jaw change\u003c\/b\u003e: Swap jaws in under 1 minute to minimize downtime and speed up changeovers between different parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReady-to-run kit\u003c\/b\u003e: Includes an operating key and master jaws so you can clamp and switch parts immediately with fewer setup steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Polish manufacture\u003c\/b\u003e: Precision‑made in the Bison factory in Poland, delivering dependable grip and long tool life for demanding use.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis chuck delivers a secure, repeatable grip on medium to larger workpieces, helping you maintain consistent part quality while improving overall workflow. With fast jaw changes, reliable performance, and include‑ready accessories, it’s a dependable choice for busy shops seeking efficiency without compromising accuracy.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372188238,"sku":"2305-200-45","price":3335.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2305_26cf4f50-39ba-4485-abd2-aaf86df08794.png?v=1694170966"},{"product_id":"2305-250-72","title":"Bison Quick Change Power Chuck - 3 Jaw - 2305 Series - 257mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Bison Quick Change Power Chuck - 3 Jaw, 2305 Series, 257mm is a reliable workholding solution designed to deliver secure grip and fast setups for mid-sized parts. Its 3-jaw design provides balanced clamping and consistent repeatability, helping you maintain accurate cuts across a variety of applications. With a 257mm diameter, it’s well-suited for shops that need dependable performance without lengthy changeovers.\n\u003c\/p\u003e \u003cp\u003e\nThis 2305 series chuck comes as a ready-to-use kit, including an operating key and master jaws so you can set up and start production quickly. All Bison power chucks are manufactured in the Bison factory in Poland, delivering tight tolerances, robust construction, and long tool life you can trust.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUnder-1-minute jaw changes\u003c\/b\u003e: Swap jaws quickly with the Quick Change system, reducing downtime and keeping your machine productive between jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete kit included\u003c\/b\u003e: Each chuck ships with an operating key and master jaws for immediate use and seamless compatibility with common workholding tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePoland-made durability\u003c\/b\u003e: Built in the Bison factory in Poland for dependable performance and long tool life in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nBy combining fast changeovers, a comprehensive included toolkit, and solid, proven manufacturing, the Bison 2305 3‑Jaw Quick Change Power Chuck helps you improve workflow, cut setup times, and achieve reliable, repeatable results across your production runs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372286542,"sku":"2305-250-72","price":4090.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2305_a6c65d4e-1e3a-4243-bce2-0d5d11838634.png?v=1694170970"},{"product_id":"2305-315-91","title":"Bison Quick Change Power Chuck - 3 Jaw - 2305 Series - 315mm","description":"\u003cdiv\u003e\n\u003cp\u003eThe Bison 2305 Series Quick Change Power Chuck is a 315 mm, 3‑jaw workholding solution built for fast, reliable clamping in busy workshops. It’s ideal for engineers, machinists, and fabricators who value quick setup and consistent results across multiple jobs.\u003c\/p\u003e \u003cp\u003eFeaturing a Quick Change jaw system, jaw replacements can be completed in under a minute, dramatically reducing downtime between parts. Each unit ships with an operating key and master jaws, so you’re ready to clamp and machine out of the box. Proudly manufactured in Poland, these chucks embody Bison’s commitment to precise engineering, durable construction, and long tool life.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast jaw changes (under 1 minute)\u003c\/b\u003e: Minimize non‑productive time by swapping jaws quickly, keeping your machine running and your workflow flowing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete ready‑to‑use kit\u003c\/b\u003e: Includes an operating key and master jaws so you can clamp, set up, and start machining without hunting for accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePoland‑made reliability\u003c\/b\u003e: Precision‑engineered in Bison’s Poland facility for durable construction and long service life you can trust in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe 2305 Quick Change Power Chuck helps you hold parts securely with repeatable accuracy, streamline setup, and maintain consistent performance across jobs. Its fast jaw-change capability, included accessories, and proven manufacturing quality work together to boost productivity, reduce downtime, and deliver reliable results in everyday machining tasks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372319310,"sku":"2305-315-91","price":5364.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2305_667a5d3b-8db3-42c8-ad55-2076ae3afc0e.png?v=1694170973"},{"product_id":"2405-200-52ksgm","title":"Bison Hollow Power Chuck - 3 Jaw - 2405-K-SGM Series - 200mm","description":"\u003cdiv\u003e\n\u003cp\u003eThe Bison Hollow Power Chuck is a 200 mm, three-jaw workholding solution designed for precision turning. Its hollow through-hole supports through-bar capability and efficient coolant and chip clearance, while the 60° serrations on each jaw provide a secure, centered grip on round parts. The plain back requires the appropriate mounting adapter for your machine, and this unit is compatible with Kitagawa jaws. Supplied with one set of SGM soft jaws, it’s ready to use with delicate parts right out of the box.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThree-jaw, 60° serrations for secure, centered grip\u003c\/b\u003e: Delivers uniform holding on round parts with minimal runout, enabling faster loading and more consistent diameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThrough-hole hollow design for through-bar work\u003c\/b\u003e: Allows longer stock to pass through the chuck and improves coolant and chip clearance for smoother, more versatile machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKitagawa-compatible jaw system with included SGM soft jaws\u003c\/b\u003e: Ensures easy integration with existing tooling and provides ready-to-use soft jaws to protect delicate surfaces during setup and part handling.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith secure gripping, through-bar capability, and straightforward jaw compatibility, this chuck helps you achieve repeatable results, reduce setup time, and protect parts during machining. The combination of robust construction, a standard jaw interface, and included soft jaws makes it easy to integrate into your current turning workflow, delivering reliable performance across both small batches and longer production runs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372679758,"sku":"2405-200-52KSGM","price":1498.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2405k_b498cc12-1d9e-41de-a489-22bf6d0a9d1f.png?v=1694171113"},{"product_id":"2405-250-75ksgm","title":"Bison Hollow Power Chuck - 3 Jaw - 2405-K-SGM Series - 250mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Bison Hollow Power Chuck – 3 Jaw, 2405‑K‑SGM Series, 250 mm diameter – delivers dependable, through‑hole workholding for precision turning and milling. Designed for shops and engineers who demand accurate, repeatable clamping and fast setup, it holds round parts securely while enabling through‑hole access.\n\u003c\/p\u003e \u003cp\u003e\nIts plain back design requires an adapter to mount on machines that need one, but it remains compatible with Kitagawa jaws for a familiar, modular workflow. Supplied with one set of SGM soft jaws, it’s ready to tailor grip to your part geometry and loading preferences.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThree‑jaw, 60° serrations for stable grip\u003c\/b\u003e: Provides balanced clamping around round stock, improving concentricity and delivering consistent, vibration‑free performance during machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThrough hole design for through‑spindle access\u003c\/b\u003e: Enables straightforward part loading and workflows that rely on through‑hole machining, reducing setup time and enhancing versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKitagawa compatibility with included SGM soft jaws\u003c\/b\u003e: Quick, reliable integration with common jaw systems and ready‑to‑use soft jaws right out of the box for fast part handling and grip customization.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis chuck combines secure clamping, adaptable mounting, and ready‑to‑go jaw options to streamline your manufacturing workflow. Expect reliable performance, easier changeovers, and repeatable results across a range of parts and applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Bison","offers":[{"title":"Default Title","offer_id":40278372712526,"sku":"2405-250-75KSGM","price":1885.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/2405k_5cd7e90f-7014-44eb-b268-174576685282.png?v=1694171116"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/bison-power-chucks.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}