Drill Bit Sharpening

Lecture on drill bits.

Google: Name parts of a twist drill

Diagram of twist drills

Demonstration of drill bit gauge.

Demonstration of sharpening.

Students will then sharpen a drill bit.

Grinder Safety

https://www.osha.gov/SLTC/machineguarding/new-grinder-checklist.html

Sharpening of drill bits with desired angles can be found on the web site:

http://www.autospeed.com/cms/article.html?&title=Sharpening-Drill-Bits&A=112910

You tube on sharpening of drill bits.