http://www.lapsun.com/10pcs-1650mm-steel-carbide-tipped-tip-drill-bit-tct-metal-wood-cutter-hole-saw-set_p1125.html
or individual drills here: http://www.ebay.com.au/itm/Steel-Carbide-Tipped-Tip-Drill-Bit-TCT-Metal-Wood-Cutter-Hole-Saw-Set-Tool-Kit-a-/121105889516?pt=AU_Power_Tools&var=&hash=item1c327938ec which I bought. Cheaper to get the set I think actually...
that hydraulic punch does look amazing though...
or individual drills here: http://www.ebay.com.au/itm/Steel-Carbide-Tipped-Tip-Drill-Bit-TCT-Metal-Wood-Cutter-Hole-Saw-Set-Tool-Kit-a-/121105889516?pt=AU_Power_Tools&var=&hash=item1c327938ec which I bought. Cheaper to get the set I think actually...
that hydraulic punch does look amazing though...