42mm Hole Saw Cutter M42 Bi-Metal Hole Saw Drill Bit for Wood Plastic Aluminum

Great hole saw. Spring is very useful but wish I'd removed it as pressure of spring, ply board split before blade cut through.

Cuts holes but the teeth are very uneven, worked for the 7 holes I needed to drill in mdf ,would not use for metal ,now in the bin ,but cheap enough and done what I needed it to ....roughly

If you want to cut holes, 24mm diameter holes, then you're going to need something round and a bit jaggyThis it it. It's round, it's jaggy (and it's red)In truth I haven't measured it to ensure that nobody's pulling the wool over our eyes but the thing I needed to fit into a 24mm diameter did just thatYou stick it on the end of a drill and it cuts 24mm diameter holes24mm diameter! I mean that's like a radius of 12mm. Roughly 75.3982mm around the outside. Oh, and the area, don't even get me started on the 452.3893mm this bad boy will have away at first touchCan't really think of much else to tell you

Works great. The ejecting spring works well.Used it to drill over 40 holes in 4mm acrylic mirror sheet. Never jammed once.

Bought and used for a bathroom plumbing job at home. Brill item and I see others complaining here and there about not being able to get the wood "plug" out of it when finished... but its so simple, just unscrew the grub screw, pull the drill bit out and then remove the wood plug and refit the drill bit...Will last a while I bet!!

Gave it two stars because I only needed to use it twice lol

Did it’s job cutting 10 holes in mdf for kitchen plinths and led bulbs

A rather good hole saw, with spring ejector for the removed disc. I've only cut thick plastic and some mild steel but it has peformed better than I was expecting for the price.