https://www.heltontoolandhome.com/makita-231839-2-tension-spring-4-for-circular-saw-5007n-5007nf/
Makita 231839-2 Tension Spring 4 for Circular Saw 5007N, 5007NF | Helton Tool and Home
Replace your worn circular saw spring with the genuine Makita 231839-2 Tension Spring 4, a durable OEM part designed to restore safe lower blade guard function...