Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools JIS ② Spiral Fluted Tap Series for through hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① XSL X Series Spiral Fluted Taps, Through Hole Use (with LH Spiral Flutes) ② Specification <2D ③ Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels 中炭素鋼 高炭素鋼 10〜15 10〜15 ④ (m/min) (m/min) Product Features ●The X series, a next generation high dimensional quality, high rigidity tap to make full use of high performance CNC machining ⑤ centers and the newer high precision tooling is now available.●From the YAMAWA analysis of the machining concept for thread cutting taps that conform to conventional pilot holes and the review of the shape of the taps we have created the optimum flute design. This was formatted from the fundamental viewpoint of "cutting screw threads". The current taps available should have been able to accomplish this function but could not. ●By further improving shank precision and shank circularity for the entire tap, it became possible to create a highly accurate screw thread for high speed machining areas. ⑥ Tapping Data Tapping Conditions [M12×1.75] Workpiece Material SCM440  ⑦ Tapping Speed 25m/min XSL Bored Hole Size φ10.3mm Can Continue Tapping Length 24mm Machinery Type Vertical machining center (synchronous feed) Conventional Wear Product Cutting Fluid Water soluble cutting fluid ( 20 to 1 dilution) 0 100 200 300 400 500 600 ⑧ (Number of holes processed.) Note: ・Please use this product with a collet chuck or a tapping holder adapted to the DIN 371 standard (For size M12 use the DIN 376 ⑨ standard). ・NT Tool Corporation ... Tap holder for height adjustment type synchro · STM type ・SHOWA TOOL Co., LTD. ... Micron chuck H series ・BIG DAISHOWA SEIKI CO., LTD. ... Mega synchro tapping holder ・NIKKEN KOSAKUSHO WORKS, LTD · Slim chuck ・YUKIWA SEIKO INC. ... Super G1 chuck ⑩ ⑪ JIS ②-35