See and Focus: With a sturdy cast aluminum body and a clear acrylic panel, you can see what's going on during the stripping process. Plus, its non-deformed structure means it'll keep going strong for years. When stripping fine wires, please note: first, adjust the blade to the proper clearance, then align the No. 3 hole on the slider with the left marking line 3, put the fine wires through the No. 3 hole, and turn the handle to strip the wires. Complete Focus Is Yours: Get ready to be blown away! The wire stripper machine has 4 stripping holes. Adjust the blade to fit all wires with a diameter from 1.5 mm to 40 mm. It's that easy! Suitable for handling hard cover wires, soft cover wires, multi-conductor wires, mono-filament wires, etc