Use your drill to rotate the 100 grit grindstone and simply press the bit against it for a sharp edge. You will have to do this twice for each drill bit for both edges.
Note: Requires a Power Drill That Operates Between 2000 and 3500 RPM.
The above dimensions are measured by physical objects. There will be light error due to different measurements.
That every product sold by Lolovee has passed our rigorous quality assurance inspection and is eligible for a 90-DAY MONEY BACK GUARANTEE. And your 100% satisfaction in our service with 24/7/365 FAST SUPPORT!