Other jobs Criterion does on screw machines include dental implant components, medical implant parts, helixes for bone-removal drills, and components for blood-analyzing units. Some of Tanya DiSalvo's ...

Screw machines are specialized automated metalworking lathes that were first developed in Switzerland during the late 1800s to produce large numbers of identical parts such as screws. At that time, ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The Takeaway: The Gearwrench 89620 torque screwdriver’s calling card is its ease of ...