Drill Bits

   / Drill Bits #51  
Seriously, I suspect the clearance angle was ground in the wrong direction.

The-Check-of-Standard-Twist-Drill-Bit-after-Grinding-Eyeballing-lip-relief-angle-of-the-outer-ed.jpg
 
   / Drill Bits #54  
I was taught how to sharpen a drill bit on a grinder in High School Metal Shop. While I'm no expert, it's pretty simple to get a decent edge on a bit in less then a minute if it's just getting dull and needing a touch up.

My current grinder is a small, half horse power, cheapy that has one fine wheel and a course wheel. The support in front of the fine wheel has a groove in it that is perfect for drill bits.

I received a Drill Doctor as a give way back when they first came out and they had commercial on for them all the time. I was impressed with it at first, but didn't think it was faster then my grinder. Then after using it a few times, I wasn't able to get the same results I did when it was brand new, and then it sat on my shelf for a few more years until I threw it away. I forgot I even had it until it was mentioned on here. Do they still sell them?
 
   / Drill Bits #55  
A fine stone, good light and good eyes or glasses and a little knowledge is all that is needed I guess. Doesn't work, try again.
 
   / Drill Bits #56  
Like many others, a regular grindstone to sharpen drill bits by eye, but I use a diamond file to put a final edge on. I find it works well.
 

Tractor & Equipment Auctions

BLAST SHIELD (A50854)
BLAST SHIELD (A50854)
2019 INTERNATIONAL LT625 TANDEM AXLE SLEEPER (A51219)
2019 INTERNATIONAL...
16ft Trailer (A50322)
16ft Trailer (A50322)
2004 Chevrolet C5500 Shuttle Bus (A50323)
2004 Chevrolet...
BLAST SHIELD (A50854)
BLAST SHIELD (A50854)
7021 (A50322)
7021 (A50322)
 
Top