A pack of 25mm pozi insert bits titanium nitride coating ti n coated forged bit for strength and longer life they have a round shaft to reduce breakage giving excellent torque transmission and extended life time bits have low hardness steel core to reduce breakage and ti n coating provides a hard coating that reduces surface deformation suit all types of screw applications in trade and industry for use with insert bit holder whats included10 x no 3 pozi bit specifications ol25 mm size no3 pozi s