คุณลักษณะ

• If it is used for more than 2 V-pulleys, the arms will move in parallel, so it will surely bite.
• The arm is easy to pull out with the fingernail with a thin tip, and the surface of the fingernail is wide.
• The shoulder part is highly rigid with ribs.
• Pulleys, gear wheels, ball bearings, etc. can be pulled out strongly and without damage.