PERSONAL OPINION

Testing and maintenance

It's a must, but

There are nuances
Any tool has to be tested after sharpening. This is done to ensure accurate performance and reliability of the tool. By looking at the way it cuts through material, the user may tell if the sharpening was done correctly or not.

The performance of the tool will change if the original sharpening angle was changed during the sharpening process. That is why it is crucial to refresh the cutting edge without changing the angle of it.

If the customer is looking to change the cutting edge angle for their knife or tool, Mr. Sharp staff can alter the cutting edge to get desired results.
Why would a customer want to change the cutting edge angle?

This procedure can be beneficial if the sharpened tool needs to have acute angle that will not require as much pressure when cutting. Albeit it changes the dexterity of the cutting edge as a whole, it improves the cutting accuracy. Kitchen knives is a common example of a tool that often need a new cutting edge angle post manufacturing.

But how about other tools? Depending on the purpose. Some tools require a precise angle to be able to cut. A good example is drill bits. If you sharpen a drill bit free hand, you risk of getting uneven wear of the cutting edge, resulting it to get misaligned in relation to the centre of the drill bit. If both cutting edges are not meeting at the centre, the drill bit will wobble, causing the hole to be bigger than needed. This would not work for a project with high tolerance requirements.
Freshly sharpened
Despite the edge angle, all tools need to be tested. There are multiple ways to test sharpness of your tools after sharpening.

At Mr. Sharp, we make sure every tool gets tested before sent back to the customer. We deployed multiple ways to test your equipment, let's go over them!
Testing knives can be a bit challenging due to requirements in cutting performance. Currently, we use paper towels as our primary medium for sharpness testing. This material is chosen because it allows us to evaluate how smoothly and efficiently the knife slices through a relatively soft but resistant surface. During the test, we look for a clean, effortless cut. The knife should glide through the paper towel without any resistance, indicating that the edge is sharp and properly honed. Take a look at these pictures to learn how it's done:
To simulate a cutting motion, press the knife gently against the paper towel and glide it downward in a smooth, controlled motion.
Wet hair test
Stylist & Groomer Scissors: two key tests to assess the sharpness and performance of stylist and groomer scissors are the wet/dry tissue test, which helps us identify any remaining burrs on the cutting edge, and fur/hair test, to see if the scissors pull or push the hair instead of cutting smoothly.

Kitchen & Fabric Scissors: magazine paper, fabric, and thread are the perfect way to check for sharpness. We’re looking for smooth, clean cuts through each material, with no signs of pulling or tearing.
During clipper blades sharpening, we test them on a flat iron surface to ensure quality.
Garden tools testing process involves various materials such as paper, wire, and wood. We also check the blade alignment, the tightness of the pivot point, and verify that any burrs on the blade are fully removed. During the cutting tests, the variety of materials help us simulate real-world conditions and ensure the tool performs well across different tasks. The goal is to achieve clean, precise cuts, with no material left uncut, indicating that the blade is functioning at its best. By testing garden tools in this way, we ensure that they deliver high-quality performance, durability, and reliability for the user.

Ready for testing
Before sharpening

Handsaw teeth alignment
Workshop tools mostly tested on wood depending on the type of tools. During tests, we also check for maintenance requirement. We use variety of tools for alignment, bending, and tightening for moving parts.