Thermostat is accurate and proven
Ball and roller bearing construction
rough concrete
The Gardner Bender 1/2 in
3-Flat Secure-Grip shank holds the bit firmly in the drill chuck
Screwdriving Bit Set, Impact-Ready, 34-Pc. Automotive Thermostat is accurate and proven34 piece, impact ready, screwdriving bit set, consists of the most commonly used bits, can be used with impact tools rated for up to 2,000 in lb of torque, set consists of a variety of different tips, including phillips, square drive & flat head bits: (1) 1" ph1, (4) 1" ph2, (4) 1" pr2, (1) 1" ph3, (1) 2" ph2, (1) 3 1 2" ph2, (1) 1" sq1, (4) 1" sq2, (1) 1" sq3, (1) 2" sq2, (1) 3 1 2" sq2, (1) 1" sl6, (2) 1" sl8, (1) 1" sl10, (1) 2" sl8, (1) 3 1 2"