these drills are any good, but TTP has the most shockingly amateurish videos I have ever seen from a professional company ever. They are almost parodies. Just listen to the intro - how many whooshes, thuds, bangs and crash sounds - with swooping graphics - do they need? It's like the wonderful 'Brass Eye'. And then there's the hesitant narrations - utterly priceless... "See how it's offset?" "Yeah..." "That wun there..." "Yeah"... etc etc etc. More thuds bangs whooshes to finish with. And then they test it - ohmagawd... I mean, don't bother using a vice that's actually clamped down to a bench or anything... Unless the guy was pushing the drill so hard he lifted the whole workbench off the ground? The darned bit even gets stuck when almost all the way through... It's a bleedin' miracle that the bit didn't snap with all the movement Hilarious. Who are these guys...!
perhaps its a ' no fancy talking salesman' approach, giving the down to earth workmen use these because they;re good ploy, If I did't know any better, I'd say they're using my shed to make those videos,
Just gonna say that Chip. "No need to centre punch on curved surfaces." then right at the beginning the chap (with his back to us) has just so obviously used one (and he hit it twice) and when the bolt's removed from the vice, they've actually drilled through the flat bit on the bolt.
I forgot about that bit, Chips and JJ - blocking the screen for a goodly time with his back (jeez...) as the cove fumbled away. And then the unmistakable clunk of a centre-punch in use. It's jaw-dropping. ly hilarious.
The theory is good chippie, but sharpening by hand on a grinder, I try to aim for about 130...If it cuts OK...Bloody bonus. LOL
I used to be pretty good at it years ago when I worked in metal but nowadays it's more luck than judgement. I used to work with an engineer who could grind a 10mm drill down to pilot at 5mm and then countersink in metal.
anyone ever got one of those off that sales telly program, i think its called drop price t.v or summut, they sell a set of drills that go throu brick,steel,wood,glass,tiles,a file, yes a file then a vice,then another drill, they're about £20 for a set. I'm tempted to get one its called, 'the only drill you'll ever need' I'm sure it can't be that good, but its on sale very often, anyone got one?
http://www.drillalldrillbits.com/ Good in thick hard steel, but try drilling thin sheet metal and they jam up and even snap the end off, I know because I've got some, they are not rated very well if you look around the net, lots of peeps on there moaning about them.
Phil,you can probably sharpen a masonry drill, but you need a "green grit wheel", so may as well use Bosch multi material drills......As for drilling a file, I bet they've annealed the bugger first.