GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex A MTECSSmall Diameter, Short type B SolidThread MTECS is used for the production of small This unique tool design offers very precise profiles and internal threads. These thread mills feature a high performance AH725 submicron carbide grade a short 3-tooth cutting zone with 3 flutes anda released neck between the cutting zone andthe shank.with PVD titanium aluminum nitride coating.The very short profile exerts a low force which minimizestool bending. This facilitates parallel andC high thread precision for the entire length. D E F Compared to taps, the SOLIDTHREAD is more accurate, thread machining is substantially faster and there is no danger of a broken tap being stuckin the hole. G SolidThread vs. TapCriteria Thread mill TapsThread surface qualityHighMediumThread geometryVery accurateMediumH Thread tolerance 4H, 5H, 6H with std. cutter 6H with standard tap, 4H with special tap Machining time Shorter or same as tap Short Machining load Very low HighRange of thread diametersWide range of diametersSpecific tap for each thread sizeRight-/Left-hand threadingSame cutterSpecific tap for right- and left-handGeometric shapeFull profilePartial profileI Features J • Minimum thread size of MTECS: M1x0.25 (0.75 mm pre hole diameter) up to M20x2.50 • 2xD and 3xD threading lengths • High cutting speeds• Short cycle time• Low cutting forces due to the short contact profile K resulting in accurate and parallel thread • Prevents oval threads near thin walls • No more dealing with broken taps • Reliable threading in blind holes• Excellent performance on hardened steel,high temperature alloys and titanium L M Tungaloy I121