The fastest non-powered speed handles. Stainless steel "T" handle wrench. Aerospace aluminum knurled handle. Square drive 1/2" with rubber tipped handles. Limited Lifetime warranty This new Speed T handle wrench is the fastest non powered socket drive tool. The tool is made from Stainless steel with a knurled aluminum guide handle. Simply get the fastener started then while holding the knurled aluminum guide handle, spin the T handle, to loosen or tighten your fastener. 1/2" square drive with ball check, and rubber tipped handles.