"Low profile locking flexible heads provide exceptional maneuverability for jobs in tight spaces","Features thumb wheels to easily and rapidly turn fasteners with your fingertips","72 tooth square drive gear head requires only 5° of sweep, and opposite end 60-tooth hex drive gear head requires only 6° of sweep","Reversible ratcheting mechanism 10'' DOUBLE LOCKING FLEX HEAD RATCHET - 1/4'' HEX x 1/4'' SQUARE DRIVE BR7210 | Matco Tools