PRAD system PRAD SYSTEM S o l u t i o n t o o l PRoduct According to Demand PRAD system Version of special tapmanufacturing Case No.5 I need a M20 × 2.5 oversize tap for Helical Wire Screw Thread Inserts (STI)! Tapping Condition Standard blank Workpiece Materials ADC12 Machine NC lathe Feed Synchronous feed Cutting Fluid Non-water soluble cutting oil Bore Hole Size φ17.6 Bored Hole Length 22mm(through hole) Tapping Length 22mm Step 1 is grinding the flute. Tapping Speed 7.5m/min ◦ Cutting edge designed for tapping aluminum Hand tap for (oversize) ◦ Specification is for Helical Wire Helical Wire Screw Screw Thread Inserts Thread Inserts completed! Case No.6 I want a spiral fluted M5 × 0.8 tap with a 100mm OAL and a 1.5P chamfer! Tapping Condition Standard blank Workpiece Materials S45C Machine MC Feed Synchronous feed Cutting Fluid Water soluble cutting fluid Bore Hole Size φ4.2 Bored Hole Length 8.5mm(blind hole) Tapping Length 7mm Tapping Speed 5m/min Step 1 is grinding the flute. ◦ Chamfer length is specified to A completed be 1.5P long shank spiral fluted tap with 1.5P chamfer! PRAD-4