DeWalt’s 1 1/2” Die Grinders feature new motors, which offer two-times the brush life of their predecessors and an epoxy coating to protect the motor from harmful abrasion. It also features an amp rating of 4.2 amps, a 35% cooler average temperature rise on the front gripping area and a 30% cooler average temperature rise on the body. The DWE4887 has a paddle switch with lock-on and the DWE4887N has a paddle switch without lock-on. Both come standard with a three-year limited warranty, one-year free service contract and 90-day money-back guarantee.