They are quite heavy which is great because it stabilises the bars at speed. An unexpeted benefit!
9pc Hole saw Down Lights Hole Cutter Saw Set 50mm 60mm 65mm 72mm 75mm 86mm 0900
04 Nov, 2022
Good value for a light duty hole saw
The rectangular late whose two pins engages the saws, if thin and bends causing the hole saw to wobble, it needs to be thicker. A quick fix is a large thick washer to provide strength.