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hi all
im in the process of drilling fixing holes for armour, into steel box section. i tried with ordinary bits but they werent up to it so i bought a bosch bit that worked so much beter did 5 hole in 5mins, but at the moment it isnt performing as it did, any tips?
im using oil and a low speed but cant get it to drill productivly
alex
Are you using a pillar drill?
You can rarely produce enough pressure with a hand drill and this cased the drills to blunt quicker.
well its sort of hard to use a pillar drill on most parts, but on the bits i can get to it was easier
Sharpen the drill
i know you can sharpen bits on a bench grinder but ive been told that is difficult, and that there was a drill attachment you could buy that did the same thing
is this true?
alex
You can buy an attachment yes.
Ive never tried one ...always sharpened mine by hand on a bench grinder.
Difficult ....no ...but then Ive been doing such things for Decades:).
do you know what it might be clled the attachment?, so i can search for it-yeh thats what i was told its easy when you have done it for ages
thanks
http://www.tooled-up.com/MicroCategory.asp?MAN=Drill-Bit-Sharpeners&CID=42&SCID=582&MCID=2608http://www.tooled-up.com/MicroCatego...s&CID=42&SCID= 582&MCID=2608
which one the top one?
this armour is turning into a drilling nightmare, i need to drill/cut some holes so part of the motor can come through- what the best way to do this a hole saw drill bit?
alex
if a hole saw is the best bet, would one of these be alright? by the way its only for drill 3mm ali
http://www.rexcrystal.co.uk/item.php?itemsID=754http://www.rexcrystal.co.uk/item.php?itemsID=754
alex
Id try this one.
http://www.tooled-up.com/Product.asp?PID=124734&MAN=Plasplug-Dsh400-Compact-Drill-Sharpenerhttp://www.tooled-up.com/Product.asp...0-Compact-Dril l-Sharpener
The Bi metal hole saw should be fine.
i searched on google and it came up with this, same one? just slightly cheaper:)
http://www.machinemart.co.uk/shop/product/details/dsh400-drill-sharpener/path/knives-multitools-2http://www.machinemart.co.uk/shop/pr...rpener/path/kn ives-multitools-2
Looks the same.:)
Bi-metal saws do alu nicely. I have cut through 20mm thick alu with a 125mm hole saw and 350w cheap bench drill. It didnt even take much longer than 20 minutes. :) Just spray some cutting fluid or denaturized ethanol on it, so it doesnt melt the material.