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 CEQA High Helix Center Drills-JIS Type A 90° ② Specification ■High helix center drills - JIS Type A center drill for machining 90°center hole. Suitable for soft and relatively tough materials. 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 CEA1.0Q 1 4 35.5 1.1 1 ¥1,490 1.25 × 90゜× 5 CEA1.25Q 1.25 5 40 1.4 1 ¥1,240 1.6 × 90゜× 6.3 CEA1.6Q 1.6 6.3 45 1.8 1 ¥1,340 ⑦ 2 × 90゜× 8 CEA2.0Q2.5 × 90゜× 10CEA2.5Q2 8 50 2.2 1 ¥1,8002.510562.81¥3,290 3.15 × 90゜× 11.2 CEA3.15Q 3.15 11.2 60 3.6 1 ¥3,670 4 × 90゜× 12.5 CEA4.0Q 4 12.5 63 4.5 1 ¥4,400 5 × 90゜× 16 CEA5.0Q 5 16 71 5.6 1 ¥8,510 ⑧ 6.3 × 90゜× 20 CEA6.3Q 6.3 20 80 7.1 1 ¥17,300 8 × 90゜× 25 CEA8.0Q 8 25 100 9 1 ¥30,200 10 × 90゜× 31.5 CEA010Q 10 31.5 125 11.2 1 ¥42,900 12.5 × 90゜× 35.5 CEA12.5Q 12.5 35.5 140 14 1 ¥77,500 ⑨ ⑩ ⑪ JIS ⑪-17 ※ = Specified Distribution Items. Made to order products.