TOOLTALK Chucks 6. Thru-Hole What size? This can be a critical consideration for applications where the material/bar stock must feed through the chuck and spindle thru-hole. 7. Types of Jaws 2-Piece Reversible - Offer more versatility and convenience. - Allows you to use a variety of soft or specialty jaws. Hard Solid - Solid, one piece - Provide more rigidity & accuracy •Changing from an inner diameter (ID) to an outer diameter (OD) application is as simple as unbolting the top jaws from the master jaws, inverting them, and reapplying the bolts. •Scroll chucks require a second set of jaws to convert from ID to OD. •Independent chucks are supplied with just one set of hard solid reversible jaws that work for both ID and OD applications. Other Important Factors LOAD CAPACITY In applications where the workpiece is extremely heavy, make sure that the chuck is rated to handle the weight. Load capacities are available for supported and unsupported applications. MIN/MAX CLAMPING RANGE This is a critical application decision. Operating a lathe chuck outside of the min/max clamping range could pose a serious safety threat and damage the chuck. RPM All manual lathe chucks have a listed maximum RPM rating. Exceeding this rating could create a serious safety risk and damage the chuck. Looking for Metalworking Tools? Contact Fastenal at 844.365.8665 or cuttingtoolsupport@fastenal.com Go to fastenal.com/metalworking for previous Tool Talks WF_101806 JP 3/20
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