⑥ Roll Tap Series Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS MHRZ Z-PRO Roll Taps for Medium Hardness Carbon Steels Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe TYPE MSRP Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) ① M8 × 1.25 G8 2110101064 4P 150 12 - 46 6.2 5 8 6 5 ¥10,300 M8 × 1.25 G8 2111101064 2P 150 12 - 46 6.2 5 8 6 5 ¥10,300 M10 × 1.5 G8 2110101078 4P 150 13 - 51 7 5.5 8 8 5 ¥12,100 M10 × 1.5 G8 2111101078 2P 150 13 - 51 7 5.5 8 8 5 ¥12,100 Spiral Fluted Taps (for through hole) M10 × 1.25 G8 2110101079 4P 150 13 - 51 7 5.5 8 8 5 ¥12,100 ② M10 × 1.25 G8 2111101079 2P 150 13 - 51 7 5.5 8 8 5 ¥12,100 M12 × 1.75 G8 2110101088 4P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 M12 × 1.75 G8 2111101088 2P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 M12 × 1.5 G8 2110101089 4P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 Spiral Pointed Taps (for through hole) M12 × 1.5 ③ G8 2111101089 2P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 M12 × 1.25 G8 2110101090 4P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 M12 × 1.25 G8 2111101090 2P 150 15 - 56 8.5 6.5 9 8 5 ¥14,400 M14 × 1.5 G9 2110101102 4P 150 18 - 56 10.5 8 11 8 5 ¥19,200 M14 × 1.5 Hand Taps G9 2111101102 2P 150 18 - 56 10.5 8 11 8 5 ¥19,200 ④ M16 × 1.5 G9 2110101116 4P 150 18 - 56 12.5 10 13 8 5 ¥20,200 M16 × 1.5 G9 2111101116 2P 150 18 - 56 12.5 10 13 8 5 ¥20,200 Number of oil grooves: M  6 = 5, M8 = 6, M10 and larger = 8 For M6 and smaller, external centers of 2 thread chamfer taps are removed. Cemented Carbide Taps ⑤ Roll Taps ⑥ Special Thread Taps Simple Inspection Tools ⑦ Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ⑥-5 ※ = Specified Distribution Items. Made to order products.