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