Goliath UNS Straight Flute Taper HSS Bright Tap

• HSS Bright Finish UNS Hand and Machine Taper Tap.
• HSS Straight Flute Short Machine and Hand Taps.
• These general-purpose taps are ideal for creating new threads in a wide variety of materials.
• 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.
• Unified National Special (UN) thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK.
• The thread profile of UNS is the same as for UN and metric threads and is described in the JIS B0206 standard.
• The thread is described by its major diameter and the number of threads per inch of length (TPI).
• UNS threads need to have the TPI specified; however the number of TPI for a specific diameter is limited.
• For example, within 1/2" diameter size, the TPI allowed are: 1/2" - 12 UNS, 1/2" - 14 UNS, 1/2" - 18 UNS, 1/2" - 24 UNS and 1/2" - 27 UNS.
• Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.
• Manufactured from HSS this general-purpose tap is designed for use in medium tensile materials and is for hand or general machine use.