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 ① Spiral Fluted Tap Series for blind hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① AL+SP AL- SP Spiral Fluted Taps for Aluminum ② Specification ・Product Name and Size. AL+SP 〜 M6 <2D AL−SP M8 〜 Nitride ③ Recommended Tapping Speeds depending on Materials Brass Brass castings Bronze Wrought aluminum Aluminum alloy castings Magnesium alloy die castings Zinc alloy castings 黄銅 黄銅鋳物 青銅 アルミ圧延材 アルミ合金鋳物 マグネシウム合金鋳物 亜鉛合金鋳物 10〜25 10〜25 10〜25 10〜25 10〜25 10〜25 10〜25 ④ (m/min) (m/min) (m/min) (m/min) (m/min) (m/min) (m/min) Product Features ●Stable screw tapping in light alloy castings such as aluminum die casting and aluminum casting even at a high speed range. ●Optimum design of the flute makes it possible to produce stable and clean internal threading with fewer burrs on the inner diameter that normally occur in tapping of light alloys. ⑤ Tapping Data Thread Size [M6×1] Material AC4C Bored Hole Size φ5.0 AL+SP ⑥ Tapping Length 9mm(Blind hole) Can Continue Tapping Speed 20m/min Machinery Type Vertical type machining center Convential Product Stopped from wear Tapping Fluid Water soluble cutting fluid(chlorinefree 20 to 1 dilution) 5,000 10,000 15,000 20,000 25,000 (Number of holes processed) ⑦ ⑧ AL+SP Conventional Product AL+SPALIn+tSerPnaInl tTehrnreaal dThread ProcessiPngroocfesinstienrgnaolftihnrteearndaslutrhfraecaed surface ConvenCtionvael nptrioodnuacl tpirnotdeurcntalinttherernaadl threaPdrocessiPngrocoef sinstienrgnaolftihnrtearndasl uthrfraecaed surface ⑨ ⑩ No buNrnoinbgurtnointghetointnheerinner BurniBngurtnoinignnteoridninaemr edtiaemr oectceur rosccurs diamedtiaemr aentdertahnedfitnhisehfiinsisghooisd.good. ●AL+SPCompared to conventional products, the internal thread quality is good and the AL+SP had long tool life. ⑪ JIS ①-133