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 C-CD-Q Low Helix Carbide Center Drills-Type A 90° ② Specification ■Low helix center drills - Type A center drill for machining 90°center hole. Suitable for hard materials and mass production. ③ ④ TYPE:1 ⑤ Segment:52 ⑥ SizeDc ×θ× Ds Code Dc (mm) Ds(mm) L (mm) ℓ (mm) TYPE MSRP 1 × 90゜× 4 CC1.0Q 1 4 35 1 1 ¥12,500 ※ 1.5 × 90゜× 5 CC1.5Q 1.5 5 40 1.5 1 ¥15,800 ※ 2 × 90゜× 6 CC2.0Q 2 6 45 2 1 ¥19,300 ※ ⑦ 2.5 × 90゜× 7.7 CC2.5Q2.5 × 90゜× 8CC2.5Q-82.5 7.7 50 2.5 1 ¥24,800 ※2.58502.51¥25,800 ※ 3 × 90゜× 7.7 CC3.0Q 3 7.7 55 3 1 ¥24,800 ※ 3 × 90゜× 8 CC3.0Q-8 3 8 55 3 1 ¥25,800 ※ 4 × 90゜× 10 CC4.0Q 4 10 65 4.5 1 ¥39,200 ※ ⑧ 5 × 90゜× 11 CC5.0Q 5 11 78 5.5 1 ¥42,100 ※ 5 × 90゜× 12 CC5.0Q-12 5 12 78 5.5 1 ¥42,400 ※ 6 × 90゜× 18 CC6.0Q 6 18 90 6.5 1 ¥106,000 ※ ⑨ ⑩ ⑪ JIS ⑪-23 ※ = Specified Distribution Items. Made to order products.