Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat
It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc
the 22mm step is most popular for our 19mm grommets - the 32mm step for our tub outlet fittings. It works well in all our plastics. our best advice is never push too hard, just enough pressure to make progress is always enough.
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