HM auksaag 19mm Univers.

The Pro-Fit Multi Purpose hole saw is an excellent blade for most building materials. The blade does not heat up or leave thermal stains on the material. Cuts several times faster and lasts significantly longer than bi-metal hole saws. Used with a power drill; do not use a rotary hammer or a hammer drill if you cannot disable the impact. Saw sizes 16-30 mm use an 8 mm hex body centre drill, and 32-330 mm use a 10 mm hex body centre drill. Cutting depth 52 mm (blades 16-32 mm) and cutting depth 55 mm (blades 33-330 mm).