Review and Evaluation
Drill Bit Sharpening Machines are available in various sizes:
• 2 to 13 mm, 3 to 20 mm for the single-function model
• 3 to 20 mm for the five-function model
• 13 to 50 mm for drills with a tapered shank
The single-function model is designed for sharpening only standard drill bits, while the five-function model can sharpen standard drill bits, center drills, countersinks, two-step drills, and flat drills. The drill point angle is adjustable from 90 to 150 degrees, and there is no limitation on the drill length.
Additionally, inside the machine box, there is a case containing a set of collets and adaptors suitable for the size and model of the device, allowing the operator to easily sharpen various types of drills in the shortest time possible.