Threading Technology – Clamping Technology 520

148 Machine Taps UNC UNF UNEF UN-8 M MF NPSF Rp (BSPP) G NPT NPTF Rc (BSPT) STI SELF-LOCK Accessories NPSM/NPSC Tech. Info v c Product Finder 1.8 Other EMUGE abbreviations AZ X With alternating teeth With “alternating teeth”, flank friction can be reduced. Coolant-lubricant can flow freely between the friction partners. With back taper Tooth chipping due to chip jams can be prevented by grinding off the tooth crests in the guide thread area. BF IKZ With bright face “Bright Face” grinding in combination with a special edge preparation ensures that chips will break in steel materials. Short chips will be evacuated without “birdnesting”. Internal coolant supply, axial (DIN designation: KA) The axial exit of coolant-lubricant provides optimum cooling and lubrication in the chamfer area. Chips are evacuated easily from blind holes. IKZN Internal coolant supply, axial, with coolant exiting in the flutes (DIN designation: KR) Radial exit of coolant-lubricant is the safest solution for providing coolant supply in the chamfer area even in through holes. LF LS Machine taps with long flutes and long shank Depending on the workpiece material, thread depths of up to 4 x d 1 can be achieved with the extended thread part and the long flutes. Machine taps with extra long shank Threads with bad access can be easily machined with these tools. VHM KHM Solid carbide Tools with a thread diameter < 12.0 mm are made of solid carbide (thread part and shank). Solid carbide head With tools with a thread diameter ≥ 12.0 mm, the head, or thread part, is made of solid carbide, the shank of tool steel. LH Left-hand thread Left-hand taps are mirror-image designs of the right-hand taps.