Bradpoint drill bits - Router Forums
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 11-20-2005, 12:27 PM Thread Starter
 
Join Date: Sep 2004
Posts: 47
 
Default Bradpoint drill bits

Anyone know how to sharpen bradpoint drill bits? If so how is it done?

Gary
g-man is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 11-27-2005, 02:16 AM
Community Founder
 
Mark's Avatar
 
Join Date: Aug 2004
Country: Canada
First Name: Mark
Posts: 6,764
 
Default

g-man, im not sure of a specific method, but you could always sharpen your own drills on a grinder with a jig or simply offhand.

Mark,
Founder of RouterForums.com
Mark is offline  
post #3 of 3 (permalink) Old 11-27-2005, 05:11 AM
Registered User
 
Join Date: Sep 2004
Country: United States
First Name: Charles
Posts: 143
 
Default

Gary.....Brad point twist drill bits are ground on a dedicated tool grinder to follow a pattern. Grinding them free hand on a bench grinder is all but impossible. You can do a grind that I have used for years for drilling sheet metal that is simular though. It can be done free hand on a bench grinder by first dressing the wheel, insuring sharp, square edges on the wheel. Use the edge of the wheel and grind a "V" in each side of the bit's cutting edges at about a 45 degree angle. The resulting profile of the bit will resemble a "W", with the middle point being longer than the outside points, this will be the pilot that guides the bit. It will cut first in the center, then the outside, then the area between the center and the outside perimeter of the bit. These will make a neat, clean hole in thin sheet metal and in wood. It will take some practice to get the relief angle and leading edge just right and even on both sides, but it will work.
If your bits are good high quality bits, I'd take them to a tool sharpening service. If not, you'd be money ahead to just replace them.
Good luck with it........Chuck

PopPop

If it's worth building, It's worth building well.

[email protected]
Pop_pop1 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Router Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
my old drill is showing its age ntreaster Tools and Woodworking 2 06-28-2008 01:57 PM
Magnate Router bits kp91 Tool Reviews 2 07-09-2007 04:36 AM
Drill safety AxlMyk Lobby 5 04-13-2007 09:27 PM
Had my drill press going Glenmore Tools and Woodworking 2 08-20-2005 10:07 PM
Need help deciding on bits. ryan.s General Routing 8 03-25-2005 10:35 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome