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 CESA High Helix Center Drills-JIS Type A 60° ② Specification ■High helix center drills - JIS Type A suitable for soft or 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 0.5 × 60゜× 3.15 CEA0.5 0.5 3.15 31.5 0.8 1 ¥2,290 0.63 × 60゜× 3.15 CEA0.63 0.63 3.15 31.5 1 1 ¥2,060 0.8 × 60゜× 3.15 CEA0.8 0.8 3.15 31.5 1.2 1 ¥1,580 1 × 60゜× 3.15 CEA1.0 1 3.15 31.5 1.5 1 ¥1,400 ⑦ 1.25 × 60゜× 3.15 CEA1.25 1.25 3.15 31.5 1.9 1 ¥1,290 1.6 × 60゜× 4 CEA1.6 1.6 4 35.5 2.4 1 ¥1,240 2 × 60゜× 5 CEA2.0 2 5 40 3 1 ¥1,030 2.5 × 60゜× 6.3 CEA2.5 2.5 6.3 45 3.8 1 ¥1,120 ⑧ 3.15 × 60゜× 8 CEA3.154 × 60゜× 10CEA4.0 3.15 8 50 4.8 1 ¥1,5004105661¥2,740 5 × 60゜× 12.5 CEA5.0 5 12.5 63 7.5 1 ¥3,670 6.3 × 60゜× 16 CEA6.3 6.3 16 71 9.2 1 ¥7,090 8 × 60゜× 20 CEA8.0 8 20 80 11.5 1 ¥14,400 ⑨ 10 × 60゜× 25 CEA010 10 25 100 14.2 1 ¥25,200 ⑩ ⑪ JIS ⑪-1 ※ = Specified Distribution Items. Made to order products.