Adding a layer of elastic mesh sleeve is a cheap and easy way to get a better grip on your woodturning tools. My friends and students like it. You can purchase mesh sleeve from mcmaster.com (I purchased item #5969K23). It is made of 1⁄16″- (1.5mm-) thick polyethylene plastic and comes in different sizes and colors. The mesh I bought would cover handles with an outside diameter (OD) of 1″ to 1½” (25mm to 38mm).
Meta Description: Link to Carl's "Get A Grip" AAW magazine "tips section" PDF. Adding a layer of elastic mesh sleeve to a tool handle is a cheap and easy way to get a better grip.