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10 Jun
Conversion Charts

Conversion Charts

Easy to use hardness conversion table and conversion factors (imperial and metric) . 

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7 Jun
Alpha Drilling Practices

Alpha Drilling Practices

The flute form, web thickness and helix angle of the standard drill are suitable for most materials producing semi-continuous chips. Drilling sizes of 13mm and smaller in soft materials which produce continuous chips, e.g. copper, aluminium. A bright finish fast helix drill may be required to...

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11 May
Alpha Taps and Dies - Tapping Best Practice

Alpha Taps and Dies - Tapping Best Practice

TAPPING PRACTICE TAP DRILL SIZE In the thread charts that follow the correct tapping size is given in the information. We also give the alternative maximum size, as with...

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2 May
Alpha Drill Selector Chart

Alpha Drill Selector Chart

Alpha A3 Drill Comparison Chart. This easy to use chart allows you to directly compare Metric, Fraction, Gauge and Inch drill sizes. You can download the pdf file , or alternatively send us an email via the

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