8 x 1.25 MC Fluteless HSS-Co5 Tap - Goliath

About this item:

• 8 x 1.25 MC Fluteless HSS-Co5 Tap - Goliath
• HSS-Co (Cobalt) Bright Finish Metric Coarse Fluteless Machine Tap.
• HSS Fluteless (Roll Form) Taps.
• Fluteless taps are also referred to as "Roll Form" or "Thread Flow" taps.
• Unlike standard taps, fluteless taps create internal threads by pressure deformation, rather than by material removal.
• As a result, no chips are formed as no material is removed.
• The thread is formed by the tap in the ductile material creating threads that have a smoother surface and greater tensile strength under dynamic stress than cut threads.
• It is essential to use a high quality lubricating fluid when using fluteless taps.
• Materials with a minimum elongation of 5% and a tensile strength no greater than 1,000 N/mm2 are suitable for thread forming.
• Metric Coarse angle of thread is 60 degrees.
• The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.
• Larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
• The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).
• Manufactured from HSS this fluteless tap is designed for use in medium tensile materials and is for hand or general machine use.
• IMPORTANT - Fluteless Taps use different tapping drill sizes than standard taps.