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 Processing Load (%) ⑨ Thread Mills / Premium Thread Mills Cutter Overall Thread Shankdia.lengthlengthdia.DcLℓDs JIS ① MC-CSLC Carbide Thread Mills for Metric Internal Threads ② Specification Coating ③ ④ Product Features ● The same MC-CSLC can process right and left hand internal threads by using the helical interpolating process. The MC-CSLC can process different diameters of internal threads with one tool if they have the same pitch. ●T he MC-CSLC can be used for a wide range of work piece materials such as aluminum, aluminum alloy, copper, ⑤ copper alloy, cast iron, stainless steel, tool steel, alloy steel, carbon steel, thermal refined steel. ●The tool is produced from an ultrafine grain cemented carbide material that offers high wear resistance. It has a special coating to gain additional tool life. ●Blind hole internal thread machining with a few incomplete threads is possible. ●The MC-CSLC is a spiral fluted thread mill that reduces processing torque when compared to straight flute type. ⑥ Cutting data Cutting Conditions[M14×1.5] Comparison of cutting torques Cutter Diameter φ10 Cutting length 20mm 15°Spiral Flute Type ⑦ Number of Flutes 4 Straight Flute Type Bored Hole Size φ12.5 Flute type Straight and spiral 120 100 80 60 ⑧ 40 20 0 One Rotation of tool around bore diameter. * The graph above is simulation figures, not an actual measurement value. ⑨ The graph on the upper right is a diagram of the machining torque change of a straight flute thread mill compared to a spiral flute thread mill. The spiral flute thread mill reduces torque by 40% and has a lower fluctuation rate than a straight flute thread mill. *For the details of how to use thread mills, please refer to Technical information P.72 to P.78. ⑩ ⑪ JIS ⑨-7