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

User Tag List

Results 1 to 2 of 2

Thread: Brad point drill conversion jig - video

  1. #1
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    21,088
    Thanks
    6,384
    Thanked 30,227 Times in 8,354 Posts

    Brad point drill conversion jig - video

    Brad point drill conversion jig. By JSK-koubou. 6:28 video:




    Previously:

    Electric hand planer rig system - video
    Drill bit sharpening jig - video
    Sanding dust table - video
    88 Best Homemade Sanding Tools eBook
    Vacuum clamp - video
    Router table from LCD monitor - video
    32 Plans for Homemade Router Tables
    Paint spray can trigger handle - video
    Doweling jig from used jigsaw blades - video
    Sandblasting cabinet - video
    Sandblaster - video
    Rubber band clamp modification - video
    Panel saw - video
    Sanding block - video
    Air hose reel - video
    Electric plane angle adjustment jig - video
    Splined miter joint jig - video
    Copy lathe - video
    Simple wire bender - video
    Universal sharpening jig - video
    Foldable painting booth - video
    Simple drum sander - video
    Electric caulking gun - video
    Aluminum frame circular saw guide - video
    Power lead container - video
    Featherboard from cutting board - video
    Center finder - video
    Quick corner clamp - video
    Wooden edge clamp - video
    Linear guide fence for router table - video
    Router table - video
    Line laser for panel saw - video
    Extendable circle cutting router jig - video
    Bench grinder tool sharpening jig - video
    Homemade aluminum frame and wood workbench - video
    Homemade simple sandblaster - video
    Homemade height gauge for circular saws and routers - video
    Homemade jigsaw table - video
    Homemade drum sander - video
    Homemade magnetic drill guide - video
    Homemade corner clamp from scrap plywood - video
    Homemade parallel link planer jig - videos
    Homemade router sub-base and centering cone - video
    Homemade metal nibbler stand - video
    Homemade angle grinder sliding cutting jig - video
    Homemade table saw push block - video

    173 Best Homemade Tools eBook

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

    johncg (Jul 23, 2021), lassab999 (Jul 21, 2021)

  3. #2
    Supporting Member
    Join Date
    Mar 2013
    Location
    Perth Western Australia
    Posts
    53
    Thanks
    21
    Thanked 50 Times in 19 Posts

    Peter Sanders's Tools

    Not a real brad point drill bit.

    This IS NOT a brad point drill. This is a normal drill with the cutting edges ground in reverse angle. While it "MAY" provide an improved cutting action over the normal "metal working" drill, it will not provide a hole as clean as a proper brad point drill.
    I purchased a Bordo brand drill bit that was labelled as a brad point drill bit. It was ground the same as you show in the video. (this was of course not a proper brad point drill bit).

    While realising this was not a brad point drill bit, I thought I would try it anyway. I used the drill to create holes for adjustable shelving in an MDF board that had a laminate surface. As most of the holes were visible, they needed to look good. This Bordo drill bit, a pretend brad point drill bit caused chipping of the laminate an the hole edges.

    A real brad point drill bit has spurs at the outer end of the cutting edge. These spurs score/cut the outer edge of the hole prior to the "real" cutting edge starts to remove material. I returned (for a full refund) this pretend brad point drill bit and explained to Bordo their misleading label. The retailer also considered the Bordo drill bit as a brad point drill bit, it is not. The images below, clearly show the difference.

    I then purchase a REAL brad point drill bit from a specialist supplier. The drill bit purchased looked like the first image.
    Name:  brad point drill tip.jpg
Views: 161
Size:  2.0 KB Name:  brad point drill tip2.jpg
Views: 162
Size:  8.4 KB Brad point drill conversion jig - video-brad-point-drill-tip3.jpg

    Using a THIN grinding wheel with your jig may produce an image similar to the first image and COULD then be used like a real brad point drill bit.

    Best wishes

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
  •