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 ⑪ Center Drills / Centering Tools Drill Shank Overall Drilldia.dia.lengthlengthDcDsLℓ JIS ① CE-S(I) High Helix Center Drills-Type A 60°, (Old JIS Type 1 ) ② Specification ■H igh helix center drills - old JIS Type A suitable for soft or relatively tough materials. ③ ④ TYPE:1 ⑤ ⑥ Segment:51 SizeDc ×θ× Ds Code Dc (mm) Ds(mm) L (mm) ℓ (mm) TYPE MSRP 2.5 × 60゜× 8 CE12.5 2.5 8 50 3.5 1 ¥1,790 3 × 60゜× 10 CE13.0 3 10 55 4 1 ¥2,830 ⑦ 4 × 60゜× 125 × 60゜× 14 CE14.0CE15.0 4 12 66 5 1 ¥4,030514786.51¥6,070 ⑧ ⑨ ⑩ ⑪ JIS ⑪-3 ※ = Specified Distribution Items. Made to order products.