DMT Diamond Machining Technology has revamped the handles in its Diafold folding diamond sharpenerline. The handles are now all made from see-through resin, which allows users to immediately identify the tool type and select the right tool for the task. The Diafold tools, made in the U.S., still have their compact folding stow-and-go design for all six tool types: single-sided, single-sided with fishhook groove, double-sided, flat file, serrated and chain saw. Pricing varies for the different models, ranging from about $25 to around $43.