⑤ Cemented Carbide Tap Series Overall length L Thread length ℓ Shank dia. Ds Size of square K Length of square ℓk DIN EH-CT Spiral Fluted Taps (for blind hole) ① DIN Carbide Taps for Hard Materials Spiral Fluted Taps (for through hole) ② Specification <1.5D Coating Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Thermal refined steels 調質鋼 〜 5 Hand Taps ( m / min ) ④ 45〜55HRC Product Features ● Ideal for hiIgh hardness steel blind hole tapping of 45 to 55 HRC materials such as steel for hot dies (SKS 3, SKD 11, etc.). ● The EH-CT utilizes a ultra fine grain cemented carbide that is superior in abrasion resistance and impact resistance. Cemented Carbide Taps ● Improved run-out accuracy of whole tap and circularity of shank. ⑤ ● Tapping length is the "major diameter size × 1.5 or less", 5P chamfer for better tool life. ● For the bored hole diameter, the maximum minor diameter of a 6H internal thread diameter maximum value is recommended. Roll Taps ⑥ TYPE:1 YAMAWA Special Thread Taps Simple Inspection Tools ⑦ TYPE:2 YAMAWA TYPE:3 DIN376 Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Segment:1L L ℓ Ds K ℓk No. of Size Class Code Chamfer TYPE (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads Dies ⑩ M3 × 0.5 ISO2X TD3.0GBCWA5 5P 56 11 3.5 2.7 6 4 1 M4 × 0.7 ISO2X TD4.0IBCWA5 5P 63 13 4.5 3.4 6 4 1 M5 × 0.8 ISO2X TD5.0KBCWA5 5P 70 16 6 4.9 8 4 1 M6 × 1 ISO2X TD6.0MBCWA5 5P 80 19 6 4.9 8 5 1 M8 × 1.25 Center Drills Centering Tools ISO2X TD8.0NBCWA5 5P 90 22 8 6.2 9 5 2 ⑪ M10 × 1.5 ISO2X TD010OBCWA5 5P 100 24 10 8 11 5 2 M12 × 1.75 ISO2X TG012PBCWA5 5P 110 29 9 7 10 5 3 DIN ⑤-25 ※ This product is different from JIS products in shape and dimensions, please be careful when using.