1 piece SabreCut Revolution Flexible Head 6.3mm (1/4") HEX & 1/4" Square Drive Micro Ratchet. 210 degrees flexible head rotation for easy access in tight spaces, perfect for many automotive, industrial, construction, cycling and DIY applications. Manufactured from high quality stainless steel with a Chromium-molybdenum (chrome moly) 60 tooth gear. Use as a ratchet or as a stand-alone screwdriver, weights only 73 grams (2.6 ounces) and 108mm (4 1/4") in length. 1/4" Square drive fits all 1/4" sockets, ideal for limited access applications.