Jewellers Tools Pithwood Log For Cleaning Tools Part Tips Watchmaker Screwdriver Tweezer Repair One log approx 90mm long will cut into approx 12-15 slices Cleanssmall tools, and parts likeoilers, screwdrivers and tweezers just press them into the wood to remove dust, fibres &excess oil, Use the pithwood to keep your watch movements and tools clean.