Outside Thickness diameter D T MS-RS-D/RS-D (for blind hole) Spiral Fluted Taps Rolling Dies Specification (for through hole) Spiral Fluted Taps ■Due to the threading through material deformation, the die produces no chips, and produces external threads of high Nitride precision with clean surface. For icon explanation, refer to P.50 TYPE:1 (for through hole) Spiral Pointed Taps Hand Taps Segment:34 Size Code Class D T Type Stock Carbide Taps Cemented (mm) (mm) For Miniature Screw Threads S0.5 × 0.125 RA20.5- R2 6 2 1 △ S0.6 × 0.15 RA20.6- R2 6 2 1 △ S0.7 × 0.175 RA20.7- R3 6 2 1 △ Roll Taps S0.8 × 0.2 RO20.8- R3 8 3 1 △ For Metric Threads Size Code Class D T Type Stock (mm) (mm) RBQ1.0B R2 Simple Inspection Tools Special Thread Taps M1 × 0.25 RBR1.0B R3 10 3.5 1 △ RBS1.0B R4 M1.1 × 0.25 RBR1.1B R3 10 3.5 1 △ RBQ1.2B R2 Pipe Taps M1.2 × 0.25 RBR1.2B R3 10 3.5 1 △ RBS1.2B R4 RBQ1.4C 10 3.5 R2 RDQ1.4C 16 5 Thread Mills RBR1.4C 10 3.5 M1.4 × 0.3 R3 1 △ RDR1.4C 16 5 RBS1.4C 10 3.5 R4 RDS1.4C 16 5 RDQ1.6D R2 Dies M1.6 × 0.35 RDR1.6D R3 16 5 1 △ RDS1.6D R4 RDQ1.7D R2 M1.7 × 0.35 RDR1.7D R3 16 5 1 △ Center Drills RDS1.7D R4 M1.8 × 0.35 RDR1.8D R3 16 5 1 △ RDQ2.0E R2 M2 × 0.4 RDR2.0E R3 16 5 1 △ Centering Tools RDS2.0E R4 RDR2.0B R3 M2 × 0.25 16 5 1 △ RDS2.0B R4 JIS Di-20 For improvement, spec may change without advance notice. 631