Park Tool AdjustableTorqueDri Includes 3, 4, 5mm and T25 bit

Prevent over-tightening and damage to lightweight components. Features all-metal internal construction for years of accurate use, and includes 1/4" drive bits in the four most common sizes for small bicycle fasteners — 3, 4, 5 mm and T25 — which are stored in the handle when not in use. Torque setting is hand-adjustable to 4, 4.5, 5, 5.5, or 6 Newton meters (Nm).