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+--- Thread: Help me sharpen my drill bits (/showthread.php?tid=78116)
Help me sharpen my drill bits - fazersharp - 13-05-17
I have this set of colbolt drill bits http://www.toolstation.com/shop/p94153?table=no but most of them are now blunt.
Can someone recommend a sharpening gizmo to re grind them, I do have a bench grinder and stone but I can never seem to get the angle right.
Re: Help me sharpen my drill bits - slappy - 13-05-17
http://uk.rs-online.com/web/p/products/2189723/?grossPrice=Y&cm_mmc=UK-PLA-_-google-_-PLA_UK_EN_Tools-_-Power_Tool_Accessories_And_Drill_Bits&mkwid=sggAS6cXl_dc|pcrid|88057064763|pkw||pmt||prd|2189723&gclid=CNyy0JuV7dMCFdYy0wodr2gIWQ
If you are just having problems getting the angle right try something like this.
Re: Help me sharpen my drill bits - chris.biker - 13-05-17
I assume you have a pedestal grinder, you need to buy silicon carbide wheel for it.
Re: Help me sharpen my drill bits - celticdog - 13-05-17
If you've got a decent bench grinder you've got everything you need fella.
You can check the angle if you hold the business end of drill bit between 2 nuts :eek it forms the correct angle 120 degrees.
https://www.youtube.com/watch?v=1WnlXoA5lSk
Re: Help me sharpen my drill bits - slappy - 13-05-17
Thats a pretty good idea :thumbup
Re: Help me sharpen my drill bits - fazersharp - 13-05-17
Thanks for the help so far, looks like i need a silicon carbide wheel, mine is more like a grinding stone and a bit rough.
I have seen in the past an all in one thing where I can just poke the bit into it, but thinking they are probably rubbish.
Re: Help me sharpen my drill bits - Skippernick - 13-05-17
it'll be fine if you are careful. Sharpen drills all the time at work on shitty indented grindstones due to welders sharpening their tungsten tips.
JUST WEAR EYE PROTECTION.