hand drill for making holes in sandwich panels with thicknesses up to 12.7 mm, plastic housing, 3 changeable drill tips (diameter 7.1/12.7/19.0 mm)
The FoamWerks hole drill enables you to effortlessly make holes with very clean edges in sandwich panels, polystyrene foam and polystyrene rigid foam boards up to 12.7 mm thick. The drill tips that are included have three different diameters (they correspond to American inch measurements, which explains the unusual millimetre dimensions given). They are fitted into place by means of screw threads in the housing. To use the tool, you hold the housing in place and turn the upper knob in a clockwise direction until you have drilled completely through the material. Notice that the holes are not made with the same action as a punch but rather by a continuously even rotation in one direction. It is for this reason that the final edges are so cleanly cut. The drill tips themselves are available separately.
You should always use a scrap piece of foam board underneath the piece you are cutting. The cutting mats made out of PVC that we usually strongly recommend as cutting underlays are too hard and too dense for use with the sensitive blades in FoamWerks tools.