Tools & Gear Taps & Dies HSS Hand and Machine Taps

C48ED4376 20 x 2.5 MC DIN 376 HSS-Co5 Tap Set - Goliath HSS-Co Bright Finish Reduced Shank Metric Coarse Hand and Machine Tap Set. HSS Cobalt Long Series Tap made to DIN 376 standard. Reduced shank taps have a smaller shank diameter than full-diameter taps. Reduced shank taps are designed for through hole applications in materials with high tensile strength. Goliath HSS taps provide a high hardness to toughness ratio, compressive and tensile strength, good abrasion resistance and resistance to micro-chipping, ensuring a long tool life. Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes. Intermediate Taps have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole. Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap. Manufactured from HSS-Co5.