Spiral Fluted Tap Series Spiral Fluted Taps (for blind hole) AU+SP Plus Series Spiral Fluted Taps, Coated Spiral Fluted Taps (for through hole) Specification E Coating Spiral Pointed Taps (for through hole) Recommended Tapping Speeds depending on Materials Free cutting and Carbon steel and Medium alloy steel and High alloy steel structural steel low alloy steel heat treated steel IS P IS P IS P IS P 10〜20 10〜20 10〜20 10〜20 (m/min) (m/min) (m/min) (m/min) Hand Taps Ferritic and austenitic Aluminum alloy Aluminum alloy stainless steel Si Si IS M M IS IS 5〜10 20〜30 20〜30 (m/min) (m/min) (m/min) For icon explanation, refer to P.50 Cemented Carbide Taps Tapping data Obtainable from Video site shown in right Tapping condition(M6×1) Work material 42 CrMo 4 (Number of holes) 2,000 holes Still working Roll Taps Tapping speed 10m/min Hole diameter φ5.0 Tapping length 9mm, blind hole Machine Machining center vertical type (Floating holder used) 200 holes Water soluble cutting oil Chip wasn't ejected well Tapping fluid (Chlorine-free,20 fold dilution) Special Thread Taps Simple Inspection Tools Conventional tap AU+SP Product features BLF(thread portion of special design)+ proprietary flute design : Pipe Taps Great improvement in chip ejection efficiency. ●AU+SP has a special thread portion design with thread crests ground off and a few full threads after chamfer left unchanged. ●Effects of AU+SP are as follows: ・Prevention of chipping trouble at full thread portion ・Reduction of tapping torque and tapping friction Chip ejection Thread Mills ・Good chip ejection no trouble Dies Change of marking position from shank into square portion Laser marking can roughen the shank surface. Center Drills In order to keep high accuracy of shank circularity and diameter, marking has been transferred from shank to square portion. Centering Tools For wide range of materials Adopting the flute of special design which enables the coating (features: wear resistance, heat resistance, and welding resistance) to work most efficiently, AU+SP is suitable for the wide range of materials and is well applicable under water soluble oil. DIN SP-14 65