General
- What is the process for sending an invention or idea to someone for consideration?
- What does the 'Bi-Metal' mean when referring to a utility blade?
- When would I use a tap and die set and how would I properly use them?
- When would I use a tap and die set and how would I properly use them?
- How do you sharpen your 1" speedbor ship auger bit ?
- How do I resharpen Irwin auger bits?
- Are Irwin cobalt alloy steel drill bits coated like the titanium ones? If the cobalt bits are rockwell hardness 66 - 67 HRc, what hardness are the titanium bits? Once you sharpen a cobalt bit and the gold coating is gone, is it just a regular bit?