TTBS53 – 53 Piece Impact Bits Set • New design bits for higher torsion. • Includes 30 50 and 89mm long bits covering all the most commonly used sizes in one set. • Complete with accessories including impact bit holders and nut setters with magnetic. • Ideal for use with power tools. • Supplied in the unique Teng Tools TC tray for use on itÂ’s own or as part of the Teng Tools tool control system.