R AF TT1 Ratchet Combination Wrench Set 8 pieces TENGTOOLS

Set of 8 combination wrenches with ratchet. Combination of flat star/fixed wrench with bi-hexagonal ratchet. Same size on both ends. Chrome vanadium. Matte finish.

5/16-3/8-7/16-1/2-9/16-5/8-11/16-3/4

FEATURES

72-tooth ratchet wrenches that provide a 5° increment between clicks

Reversible ratchet mechanism with a foldable reversing lever

Satin chrome vanadium finish

Manufactured according to DIN ISO 1711-1 and ASME B107.100

Organized in a size 1 tool tray module (TT1)

TECHNICAL DATA

USES AND APPLICATIONS

General Mechanics and Automotive: For tightening and loosening metric nuts and bolts in engines, chassis, transmissions, and auxiliary equipment.

Industrial Maintenance: Adjustment and repair of machinery, pumps, and pipes, using the 15° angle of the star side to access fasteners in confined spaces.

Installation and Assembly Work: Used by technicians to assemble structures, shelves, and equipment that use metric hexagonal screws in construction and engineering environments.

REGULATIONS

DIN ISO 1711-1 (Assembly tools for screws and nuts - Hand wrenches - Part 1: Open-end and combination wrenches - Technical requirements)

The DIN ISO 1711-1 standard establishes the technical and performance requirements for hand wrenches used in the assembly of screws and nuts, specifically covering fixed open-end wrenches, star wrenches (ring), and combination wrenches. It defines criteria for material hardness, torsion resistance under specific loads, and tolerances in the openings of the jaws, ensuring a proper fit to the fastening element and minimizing the risk of tool deformation or rounding of the nut or screw during use.