Drill Shank Overall Drill dia. dia. length length Dc Ds L ℓ CD-Q (for blind hole) Spiral Fluted Taps Low Helix Center Drills-Type A 90° Specification (for through hole) Spiral Fluted Taps For icon explanation, refer to P.50 TYPE:1 (for through hole) Spiral Pointed Taps Hand Taps Segment:51 Carbide Taps Cemented Size Code Ds L ℓ Type Stock Dc ×θ× Ds (mm) (mm) (mm) 1 × 90゜× 4 CY1.0Q 4 35 1 1 ○ 1.5 × 90゜× 5 CY1.5Q 5 40 1.5 1 ○ 2 × 90゜× 6 CY2.0Q 6 45 2 1 ○ Roll Taps 2.5 × 90゜× 7.7 CY2.5Q 7.7 50 2.5 1 ○ 3 × 90゜× 7.7 CY3.0Q 7.7 55 3 1 ○ 4 × 90゜× 10 CY4.0Q 10 65 4.5 1 ○ 5 × 90゜× 11 CY5.0Q 11 78 5.5 1 ○ Simple Inspection Tools Special Thread Taps 6 × 90゜× 16 CY6.0Q-16 16 90 6.5 1 △ 6 × 90゜× 18 CY6.0Q 18 90 6.5 1 △ Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order CE-14 For improvement, spec may change without advance notice. 653