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I want to introduct something about Index Carbide Turning Tool Set. Index carbide turning tool sets. Manual turning tool sets: 1) Model no. 250-0000 9pcs/set in wooden box, tip height 12mm, incl. 3pcs external turning tools, 3pcs internal turning tools, 1pcs internal threading tool, 1pc external threading tool, 1pc cut-off tool 2) Model no. 250-0010 9pcs/set in wooden box, tip height 15mm, incl. 3pcs external turning tools, 3pcs internal turning tools, 1pcs internal threading tool, 1pc external threading tool, 1pc cut-off tool 3) Model no. 250-0020 9pcs/set in wooden box, tip height 16mm, incl. 3pcs external turning tools, 3pcs internal turning tools, 1pcs internal threading tool, 1pc external threading tool, 1pc cut-off tool 4) Model no. 250-0030 9pcs/set in wooden box, tip height 20mm, incl. 3pcs external turning tools, 3pcs internal turning tools, 1pcs internal threading tool, 1pc external threading tool, 1pc cut-off tool 5) Model no. 250-0040 9pcs/set in wooden box, tip height 25m A die head is a threading die that is used in the high volume production of threaded components. Die Head Die Head with various chasers Die heads are commonly used on lathes, turret lathes, screw machines and CNC lathes. They may be used for either cutting a thread or rolling a thread. They may also be used for internal or external thread cutting. In operation, there are usually four moveable chasers that cut the thread then back away from the work to permit rapid removal of the tool. The lower picture at the right shows four sets of chasers. Each set of chasers is designed to cut a different thread. One set of chasers would be used at a time, each chaser is inserted into the die head (in the correct order) and the die head is closed bringing the chasers down to their cutting position. When sufficient length of thread has been cut the die head will open allowing for rapid retraction of the head without interference with the newly formed thread. With most die heads, all that is needed to open the chasers is a reverse load. Simply withdrawing the die head is all that is needed to open it. The die head shown cuts an outside thread. There are also collapsible die heads that are used to cut an internal thread. Die Head for Thread Rolling The bottom picture shows a Die Head used for Thread Rolling. A Rolled Thread may have greater strength than a cut thread, though it usually requires more energy to roll a thread than cut one. v?d?e Metalworking - Drilling and threading Drillingand threading Die head Drill Drill bit Drill bit shank Drill bit sizes Drill and tap size chart Drilling Jig borer Pin chuck Screw thread Tap and die Tap wrench Metalworking topics Casting CNC Cutting tools Drilling and threading Fabrication Forging Grinding Jewellery Lathe Machining Machine tools and associated tooling Measuring Metalworking Hand tools Metallurgy Milling NC Occupations Press tools Pipe and tube bending Smithing Turning General terminology Welding Categories: Drilling and threading(and so on) To get More information , you can visit some products about quick couplers, hand tools wrenches, calendar digital, down vests, steel hunting, hook and tackle, wood log splitter, mp3 cassette adapter, ribbon fabric, vehicle tracking unit, . The Index Carbide Turning Tool Set products should be show more here!