Dewalt dcf815 xr impact drivers 10 8v dewalt dcf815d2 gb p this 10 8v impact driver from dewalt features the new dewalt lithium ion slide battery system the compact durable design delivers 107nm of torque with all metal gearing for efficient power transmission and a long tool life the aluminium front housing provides greater heat dispersion increasing motor life and the parabolic switch profile allows for greater control over speed p p the driver has a 6 35mm drop in keyless hex d