Goliath 1/2" x 12 TPI BSW Fluteless | AIMS Industrial

Applications

• Materials with a minimum elongation of 5% and a tensile strength no greater than 1,000 N/mm2 are suitable for thread forming
• Manufactured from HSS this fluteless tap is designed for use in medium tensile materials and is for hand or general machine use

Specifications

• This thread form was developed by Sir Joseph Whitworth in 1841
• The thread form has rounded roots and crests and is specified in BS84:1956
• 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
• 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
• It is essential to use a high quality lubricating fluid when using fluteless taps
• British Standard Whitworth angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads
• IMPORTANT - Fluteless Taps use different tapping drill sizes than standard taps