Reynella East High School

What is a drill press fence and why is it recommended that it be used when drilling in the workshop? Complete the table shown below: R.P.M. = (300 x cutting speed) divided by the diameter Drill bit size Material Cutting Speed R.P.M 5mm dia. Acrylic 50m/min 11mm dia. Timber 42x19 60m/min 32mm dia. Plywood 6mm 60m/min 19mm forstener bit Timber 75x35 60m/min 3mm dia. Straight flute Tin plate … ................
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