And keep it straight - don't wobble it around!Used Bosch ones (Screwfix sell them) many times for similar thickness/size.
Slow cutting speed and plenty of oil.
You need an arbor tooIs this for steel?
Heller HSS Bi-metal Hole Saw – 83mm - Machine Mart - Machine Mart
www.machinemart.co.uk
Are they easier on the machine, or to put it another way do they let you drill a larger hole than you could with a standard mag drill cutter?Maybe not as cheap but it'll drill many holes and in hard steels and through welds no problem. Thought you could only get them type with 19mm mag drill shank but obviously not.
Fantastic advice, safety first.Get a Mag Drill with an 82mm cutter much safer
Top tip to avoid broken bones, get someone else to hold the drill for you
Are they easier on the machine, or to put it another way do they let you drill a larger hole than you could with a standard mag drill cutter?
I only need to drill 1 hole!
Planned to put it in the chuck and into the mag drill.
I only need to drill 1 hole!
Planned to put it in the chuck and into the mag drill.
Or enough magnet power to hold it!!!Check you have a big enough mag drill first, waste of money buying anything if not enough clearance to use it!