After flattening the whetstone you can use your flattening tool at a 45-degree angle to lightly grind the sharp corners and edges of the whetstone. This prevents the edges from chipping or snagging ...

Chow Hon Meng, 76, inherited his blade sharpening business from his father, and has plied the trade for over six decades. Amid rows of slowly dying shops, suffocated by the growth of new businesses ...