Step drill bits

I recently brought these step drill bits. They are really good for drilling sheet metal, plastic and very useful for enlarging existing holes. The shorter length also works well to get into those tighter places that a larger drill bit might not. These don’t work well where the thickness of the material is greater than the height on the step.

I wish I brought these when I was making holes for grommets and switches, saves so much time rather than using a die grinder.

I've got one in my van. Fabulous bit of kit

How much and were from woody?

Yeah good things to have, powerful in a pillar drill

The ones I'm using actually came from eBay, the set was $30au.