Drill Shank Overall Drill dia. dia. length length Dc Ds L ℓ C-CD-Q (for blind hole) Spiral Fluted Taps Low Helix Carbide 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:52 Carbide Taps Cemented Size Code Ds L ℓ Type Stock Dc ×θ× Ds (mm) (mm) (mm) 1 × 90゜× 4 CC1.0Q 4 35 1 1 △ 1.5 × 90゜× 5 CC1.5Q 5 40 1.5 1 △ 2 × 90゜× 6 CC2.0Q 6 45 2 1 △ Roll Taps 2.5 × 90゜× 7.7 CC2.5Q 7.7 50 2.5 1 △ 2.5 × 90゜× 8 CC2.5Q-8 8 50 2.5 1 △ 3 × 90゜× 7.7 CC3.0Q 7.7 55 3 1 △ 3 × 90゜× 8 CC3.0Q-8 8 55 3 1 △ Simple Inspection Tools Special Thread Taps 4 × 90゜× 10 CC4.0Q 10 65 4.5 1 △ 5 × 90゜× 11 CC5.0Q 11 78 5.5 1 △ 5 × 90゜× 12 CC5.0Q-12 12 78 5.5 1 △ 6 × 90゜× 18 CC6.0Q 18 90 6.5 1 △ Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order CE-18 For improvement, spec may change without advance notice. 657