Auto Meter SB-300 Intelligent Handheld Battery Tester ['REED' 211/16 shell size | Cuts

211/16 shell size | Cuts up to 2-inch deep | Fits most standard arbors and competitive machines | Recommended for cast and ductile iron | Carbide inserts outlast bi-metal teeth

5/16" x 7" x 5/8" Starter Punch & 3/8" x 8" x 3/4" Starter Punch

left-hand thread or lock | Chrome plated bar and black oxide finish on head to resist corrosionAmazon

relieving type mechanism with pressure compensated by balanced poppet Maximum Working Air Pressure: 145 PSI Ambient Temperature: 0-60-Degree C (32-140-Degree F) Modular Mounting Panel Mounting Wetted Components: Aluminum

The product is 94057 RING

Auto Meter SB-300 Intelligent Handheld Battery Tester ['REED' 211/16 shell size | CutsTests flooded, deep cycle, and AGM batteries with CCA range of 100 1600 also detects discharged batteries, bad cells, and has built in reverse polarity protection. This tester applies a true 40 amp load to the battery in order to simulate real world operating conditions consistent with BCI (Battery Council International) testing standards. Battery test results include: Measured true CCA, voltage and percent of charge, and the battery's state of health