Everything within reach even for large torques. The extra-long additional handle for Festool and Protool drills and cordless drills with a 43 mm collar is suitable for handling larger torques in drilling and screwdriving work. Can be used with a depth stop for exact drilling depth limitation. With robust sprocket for safe power transfer and individual installation on the collar. With soft grip. Drilling and screwdriving work with high torques. Carpentry. Timber construction. for absorbing higher torques. for all QUADRILL DR 18/4 and PD 20/4