1/4"-20 BSW HSS Bright Merlin® Spiral Flute Machine Tap CT80116

HSS

For general purpose applications

Helix angle of 30° - 35° degrees depending on size

BSW (British Standard Whitworth) is similar to UNC but differs in that the thread form for a BSW is 55° vs. the 60° for UNC

BSF (British Standard Fine) is a finer pitch series, also with a 55° degree thread form

BA (British Association) is a metric thread system devised by the British for small screws used in components with a thread form of 47 ½°

Spiral flute taps are designed for blind hole applications and lift chips out of the hole

Bright finish for tapping a wide range of materials but best suited for non-ferrous materials such as aluminum

The untreated surface on this tap gives lower friction and good chip flow for softer materials

Clarkson Osborn Catalog

Size 1/4"-20 BSW

Flute length 19mm

Overall length 66mm

Package quantity/sold as each 1

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