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 ④ Hand Tap Series JIS ① RE-HT Hand Tap for Thread Repair ② Specification ③ Oxide Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 〜5 〜5 〜5 〜5 ④ (m/min) (m/min) (m/min) (m/min) Product Features ● Main application: repair of screw threads. Removal of burrs, rust, paint or spattering during welding operation. ●Utilizing the best cutting edge shape for manual repairing of large diameter threads. ⑤ ●By simply exchanging the tap's head portion, it is possible to repair M50 〜 M80 threads using the same arbor and it's very economical. ●By using a long type of arbor, you can repair threads deep in a hole. Before repair processing After repair processing After repair processing (enlarged picture) ⑥ Assembling method LOCK ⑦ 【procedure】 ① Insert the parallel drive key into the key groove on the arbor. ② Turn the M4 bolt using a 3 mm hex wrench and firmly tighten the parallel drive key in place. * On the opposite side, follow the operation instructions ⑤ ① and ② and firmly tighten the second parallel drive key. ③ Insert the cutting edge portion of the tap onto the pilot diameter of the arbor. ④ ⑧ (Align the tenon groove of the cutting edge portion of the tap to the parallel drive key on the arbor). ③ ④ S et the flat washer and the spring washer in the countersink of the cutting edge portion. ⑤ Lightly tighten the M10 center bolt with a 8 mm hex wrench. ⑥ R otate the cutting edge portion of the tap toward the parallel drive key like that of ⑥ ⑨ the cutting load during tapping. ② ① Firmly tighten the M10 center bolt using a 8 mm hex wrench to attach the cutting edge portion of the tap to the arbor. LOCK * When exchanging the taps head part, secure the arbor firmly to the vise. * When ordering for the first time, please order a set of head and arbor. ⑩ 【reference】 Tightening torque of taps head fixing screw Socket head cap screw. Tightening torque (N · m) M10 24 ⑪ N ote:・Becauseofthe tap's head replacement method, normal tapping to produce internal thread can not be performed. Be careful as there is a risk of breakage if an excess torque is imposed on the tap. ・The RE-HT is designed to be used by hand, it can not be used on machines. ・Excessive tightening of hexagon socket head bolts may cause deformation or breakage. JIS ④-127