Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 9 of 9

Thread: Sharpening a huge drill bit - GIF

  1. #1
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    18,848
    Thanks
    5,379
    Thanked 24,758 Times in 6,752 Posts
    Mentioned
    0 Post(s)
    Tagged
    5 Thread(s)

    Sharpening a huge drill bit - GIF

    Sharpening a huge drill bit.



    Previously:

    Chinese employees working inside a hydraulic press - video
    Forging a large flange in China - video

  2. The Following 9 Users Say Thank You to Jon For This Useful Post:

    baja (11-11-2018), dubbby (03-04-2020), mwmkravchenko (11-05-2018), olderdan (11-06-2018), PJs (11-06-2018), ranald (11-07-2018), rlm98253 (11-05-2018), Seedtick (11-05-2018), Toolmaker51 (05-15-2020)

  3. #2
    Supporting Member mwmkravchenko's Avatar
    Join Date
    Nov 2017
    Location
    Perth Ontario Canada
    Posts
    206
    Thanks
    1,071
    Thanked 94 Times in 57 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Now tht's a guy that knows what he's doing.

  4. The Following User Says Thank You to mwmkravchenko For This Useful Post:

    dubbby (03-04-2020)

  5. #3

    Join Date
    May 2016
    Posts
    17
    Thanks
    1
    Thanked 15 Times in 9 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I, too, admire his skills. However I cringe at the lack of eye protection. He doesn't appear to be working in the stereotypical "black hole" - its clean and he has adequate space around him. Sparks are so little but they fly so fast, and an eyeball is so soft.

  6. #4
    Supporting Member mwmkravchenko's Avatar
    Join Date
    Nov 2017
    Location
    Perth Ontario Canada
    Posts
    206
    Thanks
    1,071
    Thanked 94 Times in 57 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Papa Smurf View Post
    I, too, admire his skills. However I cringe at the lack of eye protection. He doesn't appear to be working in the stereotypical "black hole" - its clean and he has adequate space around him. Sparks are so little but they fly so fast, and an eyeball is so soft.
    Yep. To soon we get old. To late we get smart.

    Ear protection only after the loss is noticeable. Eye protection after the safety squints fail one to many times.

  7. #5

    Join Date
    May 2016
    Posts
    17
    Thanks
    1
    Thanked 15 Times in 9 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Having grown up the son of an ophthalmologist I was very aware of eye protection. I later worked as a government inspector of occupational heath and safety and my own hearing protection became important to me, to the extent that I wore my moulded hearing protectors while cutting my grass - very unusual in the society I lived in. Sadly, my meticulous care did not prevent hearing loss in one ear later in life, but the audiologist attributes that to a viral infection. I have a valid excuse for not hearing my wife if my good ear is covered by the pillow!

  8. #6
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    2,617
    Thanks
    4,430
    Thanked 1,904 Times in 1,163 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Toolmaker51's Tools
    Quote Originally Posted by Papa Smurf View Post
    I, too, admire his skills. However I cringe at the lack of eye protection. He doesn't appear to be working in the stereotypical "black hole" - its clean and he has adequate space around him. Sparks are so little but they fly so fast, and an eyeball is so soft.
    Those kind of skills are 3rd world in my book; serviceable on the part of the worker, ignorant management.
    Is a black hole; equipment and work calling for a ~3" bit with a #6 Morse taper...but no drill grinding fixture, let alone a drill grinder? A disc sander works far better for wide areas, maintaining equal angles and widths of large bits.
    Nice little water bucket, waist high? Not even. A1 grade black hole.
    Search revealed around a 3" diameter bit @ $600 USD in HSS, with unknown country of manufacture. And when it doesn't say, they really don't want you to know...

    Personal campaign toward China products is in more a full swing than before. This COVID19 s**t was last straw for me. The Machine Tool Blue Book predicted many issues they foresaw with off-shoring, and every one of them occurs, regularly. I purged off-brand stuff a good time back. I have more reliance on name brands, even if sourced in China, if I already own it. But new purchases I scrutinize. And when the info is hard to find, no deal.
    Last edited by Toolmaker51; 05-15-2020 at 01:33 AM.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  9. #7
    Supporting Member madokie's Avatar
    Join Date
    Oct 2017
    Posts
    89
    Thanks
    0
    Thanked 30 Times in 25 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i have a 2 1/4 drill bit like that, USA made,sharpened it on my 6 inch bench grinder,still for sale after 10 years..

  10. #8
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    6,164
    Thanks
    788
    Thanked 4,827 Times in 2,355 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Frank S's Tools
    I have a 2 3/4" drill bit that 30 years ago I turned the M6 down to M4 so I could use it in my Cleereman drill press
    Sharpening a huge drill bit - GIF-20170408_191526aa.jpg
    Never try to tell me it can't be done
    When I have to paint I use http://kbs.justoldtrucks.com/

  11. #9
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    2,617
    Thanks
    4,430
    Thanked 1,904 Times in 1,163 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Toolmaker51's Tools
    Quote Originally Posted by madokie View Post
    i have a 2 1/4 drill bit like that, USA made,sharpened it on my 6 inch bench grinder,still for sale after 10 years..
    Sure, 2-1/4" after 10 years. What size was it when sharpened so long ago?


    Post your reply!
    Join 42,532 of us and get 500+ tool plans, tool eBooks, build guides, and much more.



    eBooks for Supporters
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •