4-Jaw Lathe Chuck, 8 Inch (200 Mm), Self-Centering Chuck With 1 1/2 In-8 Threaded Backing Plate, 0.16-7.87 In (4-200 Mm) Clamping Range With T-Wrench Screws, HT300 Material, For Wood Metal Lathe

About these items Crafted from HT300 cast iron and hardened to ≥53 HRC jaw hardness and ≥45 HRC scroll plate hardness this lathe chuck offers long-term wear resistance and performance in tough environments Designed with a self-centering feature this chuck eliminates repeated adjustments delivering consistent and accurate clamping results for high-precision operations Available in multiple sizes including 3 inch 6 inch 8 inch and 10 inch with 3 jaw 4 jaw and 6 jaw options each compatible with a variety of machine threads and cam locks Accommodates a wide clamping range up to 9.84 inches depending on the model allowing users to handle various workpiece sizes in turning milling or drilling applications Each model includes a matching T-handle tool and is constructed with simplicity and rigidity for easy installation and smooth daily use on most lathes Key Differences The 6 inch 3-jaw model (K11 160A) features a 1 1/2 in-8 thread and supports clamping 0.12-5.71 in workpieces. Th e 8 inch 3-jaw (K11 200A) offers larger capacity with a 2 1/4 in-8 thread and up to 7.87 in clamping range. Th e 8 inch 4-jaw model (K12 200) uses a 1 1/2 in-8 thread but adds jaw flexibility for irregular shapes. The 6 inch 6-jaw (K11 160A D1-4) offers enhanced grip distribution and a D1-4 cam lock mount. The 10 inch 4-jaw chuck (K72 250) clamps workpieces up to 9.84 in and includes step jaws for secure hold. The 3 inch 3-jaw chuck (K11 80) is compact for small precision tasks, supporting 0.08-2.48 in clamping. The 3 inch 4-jaw model (K72 80) has an 0.86 in inner diameter and handles up to 3.15 in external grip. Specifications Material: HT300 cast iron with hardened jaws ≥53 HRC and scroll plate ≥45 HRC Clamping Range: Internal up to 9.84 in / External up to 9.84 in depending on model Connection Types: 1 1/2 in-8, 2 1/4 in-8, D1-4 cam lock Jaw Types: 3-jaw, 4-jaw, 6-jaw options with separate or step jaws Sizes Available: Outer diameters of 3 in, 6 in, 8 in, and 10 in Weight Range: From 3.86 lbs to 44.42 lbs Accessories: T-wrench or T-key included with all models Package Contents Each model includes 1 x Lathe Chuck 1 x T-Wrench or T-Key as appropriate