Tips & Tricks
TOP TIP
Heat sink for sharpening
Grinding a chisel or plane iron generates a lot of heat, and quenching the blade in water can create minute fractures that can affect the quality of the cutting edge. Oil will cool the metal more slowly and safely, but it’s messy. Instead, try a passive heat sink scavenged from a computer motherboard. This small square of metal (typically aluminum alloy) is deeply
