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5/16″x22 BSF HSS GT SPIRAL FLUTE TAP
BSF (British Standard Fine)
HSS Ground Thread Taps
IS0 529 – Spiral Flute
Out of stock
SKU : SHR0851630F
BSF (British Standard Fine)
HSS Ground Thread Taps
IS0 529 – Spiral Flute
Specification :
Brand : Sherwood
eCl@ss Code : 21010210
Shank Diameter : 8.0
Size – Pitch : 5/16″ x 22
Square A/F : 6.3
UNSPSC Code : 27112806
Weight each : 23g
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Cutting takes place only on the throat and the first full tooth; the remaining threads are above centre height and act as a nut, ensuring accurate pitch. Ideal for batch work or continuous production of threaded steel bar. Coventry dies are not interchangeable. An original set of new dies must always be used together. When taken from the diehead the set of dies should be retained in its box until required again.
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20° for general work and soft steels – supplied as standard.
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Each die is marked with: diameter, pitch, type of die and gauge number. Non-standard or special dies are marked with an SD number which should be quoted when re-ordering. When a set of dies has been re-ground several times by grinding the throat angle, the height of the cutting edge rises above centre. This condition must be rectified by grinding the rake angle until the die height is correct according to the number shown on the die. -
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Cutting takes place only on the throat and the first full tooth; the remaining threads are above centre height and act as a nut, ensuring accurate pitch. Ideal for batch work or continuous production of threaded steel bar. Coventry dies are not interchangeable. An original set of new dies must always be used together. When taken from the diehead the set of dies should be retained in its box until required again.
Throat Angles
20° for general work and soft steels – supplied as standard.
33° âBâ type for cutting brass, available on request.Grinding Dies
Only two angles are ground on Coventry dies, the throat angle and the rake angle and in the particular case of Holozone dies only the throat angle is ground. All dies in a set must be ground on the throat at the same time and since they cannot be accurately ground by hand, a die grinding fixture must be used.Marking & Materials
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1/2″ (12mm) CHS COVENTRYDIE HEADRead moreWS Style Coventry Dies Head
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