spudman*2008
Member
Hi there any tips or ideas on how to drill a 10mm hole in a spring steel tine which is 10mm thick
Making a hole in spring steel
- Thread starter spudman*2008
- Start date
spudman*2008
Member
Fast or slow speed
TripleSix
Member
- Location
- Helmsley, North Yorkshire
Either warm the spot where you want to drill to cherry red and let it cool or just blow a hole through with the gas axe
spudman*2008
Member
Thanks
Nearly
Member
- Location
- North of York
Lube
organicguy
Member
- Location
- North East of the south west
On the Repair shop, to drill a hole in a clock spring , Steve heated it to take the temper out, then drilled as normal.
Guess you might need the temper?
Guess you might need the temper?
spudman*2008
Member
Yes it's a drag tine I can't get the right length I need so bought the shortest I could get still need to shorten them and drill two 10mm holes in them any tips and ideas greatly appreciated
- Location
- America's dairyland
I don't know if I've ever done it to spring steel, but a carbide masonry bit can be sharpened just a little sharper on a grinder, then it will wear it's way through any steel I've tried. Slow and moderate pressure. No lube.
A cobalt bit with lube will be much quicker and cleaner if it will cut. I don't know how long it would last if you anneal that spot.
A cobalt bit with lube will be much quicker and cleaner if it will cut. I don't know how long it would last if you anneal that spot.
- Location
- Cumbria
As has been advised, heat to cherry red then leave to cool naturally.
Drill about 3/400 rpm, with plenty of coolant.
Re-harden when done.
Drill about 3/400 rpm, with plenty of coolant.
Re-harden when done.
Have you got a mag drill? there is a 10mm cobalt broaching cutter available i think, not cheap tho so you would hope to use it for more than 2 holes i guess.
Stock
Member
- Location
- The Emerald Kingdom,
in this situation what I do is get a couple of masonry bits and regrind them to steel bit profile and keep them cool as the tungsten tip is only brazed on. The same applies to the drilling process plenty of waterbased drill oil. I have drilled bearing with these drills.....................................................................................................
ACEngineering
Member
- Location
- Oxon
Pillar drill and solid carbide drill bit will do it, can drill a ball bearing race with solid carbide.
spudman*2008
Member
Many thanks to all for help will let you know how I get on may have to wait to a wet day job