Makita U.S.A. of La Mirada, Calif., is recalling about 450 of their circular saws as it has been reported that the product's lower blade guard can malfunction and expose the blade, posing a laceration hazard and risk of injury to the consumer. Thankfully, no incidents or injuries are reported. This recall involves the Makita 5057KB 7-1/4 circular saw with dust collector. The model number and serial number are located on the black nameplate under the name Makita. The saws housing is a blue-green color and Makita is printed on the dust cover. The serial number ranges included in this recall are: 12638-12737, 12978-13027, 13208-13257, 133322-13351, 13376-134505, 13578-13627, 13568-13707 and 13900-13979. The saws, manufactured in Japan, were sold at Tools Plus and other industrial suppliers nationwide and various websites including www.Amazon.com from March 2016, through September 2016, for about $400. It is suggested that all consumers of this product should immediately stop using the recalled circular saws and contact Makita to schedule a free repair. Consumers may contact Makita U.S.A. at 800-462-5482 from 8 a.m. to 7:45 p.m. ET Monday through Friday or online at www.makitatools.com for more information.