General Contractor
FAQ
How do I resharpen Speedbor flat bits?
Use a small file to sharpen the top of the cutting edge and inside the spur... Read more
How do I resharpen Irwin auger bits?
First never sharpen the outside edges of the bit that cut--the spur and sid... Read more
How do you sharpen your 1"speedbor ship auger bit ?
You should use a small triangular file. Your local hardware store may even ... Read more