10 seconds to drill a hole, 5 mins getting the material out.
Surely there is a knack to it?
newtec1,
Feb 3, 1:04am
What stuff, the centre comes out in one piece if you use the slots in the side to remove it.
zoopa,
Feb 3, 2:09am
Whatever material it is you put a hole in. Today it was 18mm ply, several times. Yes it comes out in one piece, once I get it out enough to grab it with my finger tips and twist it, It's getting it to that point. Screwdriver, chisel, knife nail, whatever is on hand to try and work it up. It's a right PITA . I think it was easy, once. But that was gib and it broke.
zoopa,
Feb 3, 2:28am
I know the trick about drilling in from both sides so that it is half out of the saw when the cut is done, but that isn't always possible. I might try and slick them up with some paste wax. It helped on my other saw blades, both powered and manual.
tigra,
Feb 3, 1:27pm
Somehow, when I do it, drilling from both sides never works!
mrploppy,
Feb 3, 2:30pm
Unscrew the saw from the mandrel and knock it out through the mounting hole works for me.
captaingraham,
Feb 3, 4:33pm
+1 Also, if the hole size is not critical, rock the drill from side to side while drilling.
bluefrog2,
Feb 3, 6:51pm
Is it possible to drill a small hole in the centre of the cut out section first, while it's still on the board? Then use the hole saw to cut out the circle, with the small drilled hole in the centre of the cut out section. Then hook it out of the hole saw with a screwdriver, through the predrilled hole. Not sure if that makes sense, it's just a thought experiment.
newtec1,
Feb 3, 9:51pm
No you need the centre drill in the mandrel to keep it in the centre.
zoopa,
Feb 3, 10:22pm
That can hurt, although I usually do it anyhow. Smartens up a limp wrist real quick
snork28,
Feb 4, 12:22am
just use an electric drill and drill into it, now you have leverage.
tigra,
Feb 4, 4:21pm
Or drill a small hole away from the centre hole before you start the main "drill cut" that will also give you leverage.
raven71,
Feb 5, 1:23am
What diameter hole was it? Once I've started a hole, I prefer to remove the pilot drill (especially with smaller diameter holes <30 mm) and carry on without it.
jb2815,
Feb 5, 4:35am
Just unscrew your holesaw base from the holesaw, separate the mandrill pilot out from the mass, and jam a screwdriver/etc in the hole and lever it out.
If you're using the one piece Starrett ones, they've got springs in them you can press down on the cutout and if you're lucky it will pop out.
sr2,
Feb 5, 4:47am
I think you guys may be overcomplicating things. Blu-Mol (or similar) hole saws have a series of vertical slots on their perimeter; the trick is to gently lever the plug out of the saw using two screwdrivers, one each on opposing slots. Very easy and very quick!
franken1,
Feb 5, 6:07am
It all comes down to using a decent holesaw.
bill1451,
Feb 6, 2:20am
exactly this (w) hole Thing has been overthought jees not rocket science, if using the bigger mandrel, its easy to back the round knurled nut of which lifts the two pins, or if using a battery drill put in low speed and reverse while using a crescent to unscrew.
socram,
Feb 6, 3:50am
Agree. A spray of silicone (as long as you are not painting) may help. Or, if in ply or timber, screw a woodscrew in half way then pull out with pliers.
zoopa,
Feb 6, 4:58am
Never occurred to me to remove the saw from the bit. Duh. Always did need specs, the ones that help you see the obvious ;-)
Mine all have slots, and I use them to lever, it was till a PITA. I'm an occasional user, so what holesaw I have on hand, or is cheapish will work. Incl the 65mm one I found inside a wall when I was replacing some weatherboards. I bet the guy who installed the heat pump swore when it dropped lol.
That was the one that caused me to start the thread, but the problem is the same, mostly, for what ever I use.
No I will agree Zoopa,it is a bugger to get out and shouldn't be like that but it is.
juli55,
Feb 7, 3:50am
Those 'plugs' from a hole saw make great joints for soft toys. Two washers, a split pin, four pieces of buffering fabric and the 'plugs'. )[\---o/]) = joint. Sell on crafts.
zoopa,
Jul 21, 1:50am
God no. That's a real holesaw. My 15 year old kit of bits, with holesaws, feels inadequate, as does the one I found in a wall.
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