DRC Chain Checker 420-530
Product Description
The Chain Checker makes it easy to measure the elongation of a chain, whereas before you were forced to replace a chain by feel. The scale in the center of the unit allows the user to check the chain's degree of stretch. 420 / 428 / 520 / 525 / 530 chain sizes can be used.Precautions
*When the chain elongation reaches the following limit, replace the chain.
Non-seal chain 1.5% (growth rate)
Seal chain 1.0% (growth rate)