The new Pro Torque Wrench has an increased torque range of 10-90 inch-pounds, a larger bit assortment (13 bits in total), an improved bit holder for pulling to release, and a storage loop for better organization and visibility of the bits. Incorrect torque can affect the accuracy of the optics and cause damage to the internal components, the Pro torque wrench is designed to remove both the above and below tightening during assembly. Ergonomic design and clamping drill holder improve control and accuracy. Included in the kit: 8 hex bits (9/64", 5/32", 3/16", 2mm, 2.5mm, 3mm, 4mm, 5mm), 3 Torx bits (extended T-10, T-15, T-25), 1 slotted bit (10mm wide), 1/2 1/21/4" 1/1/1/1/1 Square Plug Adapter 0.06 Inch Backed by our unlimited, unconditional, lifetime VIP warranty. A fully transferable promise to repair or replace the item if damaged or defective. Does not cover loss, theft, intentional damage or cosmetic damage that does not hinder performance., Weight: 0.7925 pounds, Manufacturer: Vortex Optics