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 Maximum Overall Drilldia.dia.dia.lengthlengthDcDsD1Lℓ JIS ① CESB High Helix Center Drills-JIS Type B 60° ② Specification ■High helix center drills - JIS Type B suitable for soft or relatively tough materials. ③ ④ TYPE:1 120° ⑤ Segment:51 ⑥ SizeDc ×θ× Ds Code Dc (mm) Ds (mm) D1(mm) L (mm) ℓ(mm) TYPE MSRP 0.5 × 60゜× 3.15 CEB0.5 0.5 3.15 1.06 31.5 0.8 1 ¥3,030 0.63 × 60゜× 3.15 CEB0.63 0.63 3.15 1.32 31.5 1 1 ¥2,720 0.8 × 60゜× 3.15 CEB0.8 0.8 3.15 1.7 31.5 1.2 1 ¥2,330 ⑦ 1 × 60゜× 4 CEB1.01.25 × 60゜× 5CEB1.251 4 2.12 35.5 1.5 1 ¥1,9801.2552.65401.91¥1,860 1.6 × 60゜× 6.3 CEB1.6 1.6 6.3 3.35 45 2.4 1 ¥2,360 2 × 60゜× 8 CEB2.0 2 8 4.25 50 3 1 ¥2,360 2.5 × 60゜× 10 CEB2.5 2.5 10 5.3 56 3.8 1 ¥3,430 ⑧ 3.15 × 60゜× 11.2 CEB3.15 3.15 11.2 6.7 60 4.8 1 ¥5,080 4 × 60゜× 14 CEB4.0 4 14 8.5 67 6 1 ¥6,580 5 × 60゜× 18 CEB5.0 5 18 10.6 75 7.5 1 ¥13,600 6.3 × 60゜× 20 CEB6.3 6.3 20 13.2 80 9.2 1 ¥18,400 8 × 60゜× 25 CEB8.0 8 25 17 100 11.5 1 ¥27,100 ⑨ 10 × 60゜× 31.5 CEB010 10 31.5 21.2 125 14.2 1 ¥49,800 ⑩ ⑪ JIS ⑪-27 ※ = Specified Distribution Items. Made to order products.