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-Q V High Helix Center Drills-Type A 90°, Coated ② Specification ■High helix center drills - Type A center drill for Coating machining 90°center hole. Coated to improve wear resistance and anti-welding. ③ ④ TYPE:1 ⑤ Segment:51 ⑥ SizeDc ×θ× Ds Code Dc (mm) Ds(mm) L (mm) ℓ (mm) TYPE MSRP 1 × 90゜× 4 VCY1.0Z 1 4 35 1 1 ¥3,850 1.5 × 90゜× 5 VCY1.5Z 1.5 5 40 1.5 1 ¥3,480 2 × 90゜× 6 VCY2.0Z 2 6 45 2 1 ¥3,660 ⑦ 2.5 × 90゜× 7.7 VCY2.5Z3 × 90゜× 7.7VCY3.0Z2.5 7.7 50 2.5 1 ¥4,28037.75531¥4,280 4 × 90゜× 10 VCY4.0Z 4 10 65 4.5 1 ¥6,880 5 × 90゜× 11 VCY5.0Z 5 11 78 5.5 1 ¥7,440 6 × 90゜× 18 VCY6.0Z 6 18 90 6.5 1 ¥21,400 ⑧ ⑨ ⑩ ⑪ JIS ⑪-21 ※ = Specified Distribution Items. Made to order products.