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 CD-S(II) Low Helix Center Drills-Type B 60°, (Old JIS Type 2 ) ② Specification ■The CD-S(II) is an old JIS type 2 center hole drill suitable for relatively hard 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 1 × 60゜× 6 C21.0 1 6 2.5 45 1.5 1 ¥3,020 1.5 × 60゜× 8 C21.5 1.5 8 4 50 2 1 ¥2,870 2 × 60゜× 10 C22.0 2 10 5 55 3 1 ¥4,170 ⑦ 2.5 × 60゜× 12 C22.53 × 60゜× 14C23.0 2.5 12 6.5 60 3.5 1 ¥6,03031486541¥7,890 4 × 60゜× 18 C24.0 4 18 10 76 5 1 ¥16,400 5 × 60゜× 22 C25.0 5 22 12 88 6.5 1 ¥22,700 6 × 60゜× 25 C26.0 6 25 15 100 8 1 ¥32,600 ⑧ ⑨ ⑩ ⑪ JIS ⑪-29 ※ = Specified Distribution Items. Made to order products.