VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members. Tough Quality Assurance 2. Incredibly Low Prices 3. 4 Self-centering 3 Jaw Lathe Chuck With Two Sets Of Jaws This versatile chuck is made of high-quality hardened steel, resistant to compression and has a long service life. It has two sets of jaws that can hold industrial parts in the range of 0.078″ / 2 mm – 3.54″ / 90 mm. Of course, this chuck self-centering function can save the trouble of repeated calibration during installation. This chuck is easy to install and easy to operate. It is suitable for all kinds of general-purpose lathes, economical CNC lathes, grinding machines, milling machines, drilling machines, and machine tool accessories. Abrasion & Durable All guide rails and bearing surfaces of this jaw self-centering keyed chuck are precision-machined and have passed the HRC 58-62 test. Self Centering Because the pitch of the flat rectangular thread is equal, the three claws have the same movement distance, which has the function of automatic centering. Precision Bevel Gear When the bevel gear is pulled with a wrench, the thread wood lathe chuck starts to operate, and the bevel gear controls the precision of the work-piece held by the chuck. Large Clamping Range The chuck has two sets of internal and external jaws. This chuck has a large clamping range and is suitable for clamping a variety of industrial parts. Easy Installation This mini lathe chuck is composed of a chuck body, a movable chuck, and a claw drive. Because the chuck is self-centering and requires no calibration, installation is simple and quick. Wide Application The 3 jaw lathe chuck is suitable for a variety of general-purpose lathes, economical CNC lathes, grinding machines, milling machines, drilling machines, and machine tool accessories. Mounting Thread: 3-M8 Internal Jaw Clamping Range (A-A1): 0.08″ / 2 mm – 1.18″ / 30 mm Internal Jaw Jamming Range (B-B1): 1.18″ / 30 mm – 3.54″ / 90 mm External Jaw Clamping Range (C-C1):1.18″ / 30 mm – 3.15″ / 80 mm. 1 X 4 / 100 mm Lathe Chuck Body 3 X Internal Jaws 3 X External Jaws 3 X Mounting Bolts 1 X Safety Chuck Key. The lathe chuck body is made of high-quality hardened steel, and the hardness test of the jaws and guides is HRC 58-62. It has high strength and toughness, compression resistance and durability, and long service life. The wood lathe chuck jaws and three jaws are self-centering, the alignment accuracy is less than or equal to 0.002 / 0.05 mm, and no adjustment is required after installation. The high precision design of the chuck bevel gear guarantees the accuracy of the chuck operation. 2 SETS OF JAWS? – This chuck includes two sets of internal and external jaws. The clamping range of this chuck is between 0.078″ / 2 mm – 3.54″ / 90 mm, which is suitable for clamping a variety of industrial parts. The lathe chuck has an automatic centering function, so it does not need to be repeatedly calibrated during installation. It only needs to be installed in the correct order, which is simple, fast, and convenient. This scroll chuck is highly adaptable and can be used with the same series of jaws, which is suitable for a variety of parts such as hanging shafts, disks, equilateral triangles, etc.