Model DFS452 is an advanced version of model DFS451 and has been developed as a cordless screwdriver that can supersede corded screwdrivers.Features of the Makita DFS452Z include:Push drive technology.Lock on function.Silent clutch.One touch locator.LED job light with on/off switch.Variable speed control by trigger.Battery fuel gauge.Belt hook.Ergonomic soft grip.Forward/reverse rotation.Includes Makpac Inlay for Type 2 Makpac caseBare Tool – No Batteries, Charger or case suppliedMakitas New Lithium Ion Brushless BL MotorsMakitas new Brushless Motors give up to twice the run time of a conventional motor with brushes and an upbeatable 22 minute charge with the DC18RC charger.Key Reasons why to go brushless- Brushless motor draws less amps, works twice as long- Less heat generation extends battery life, reduces frequency of charging batteriesMakita s brushless motor enhances operational performance as well as battery longevity. This enables a Makita 3Ah battery to give users as much work as some competitor s 4Ah products.With the added benefit of a 22 minute charging time you can keep on going all day.Less friction increases motor speed and less heat is generated which improves performance and extends machine life.