DESCRIPTION
A Ratchet Type Torque Wrench is a precision hand tool used to apply a specific torque to fasteners such as nuts and bolts, ensuring they are tightened accurately to required specifications. These wrenches feature a built-in ratcheting mechanism on the drive head that allows continuous turning in one direction without repositioning the tool, which improves efficiency and ease of use in confined spaces. The ratchet mechanism complies with ASME B107.14 operational characteristics, guaranteeing smooth and reliable performance.
These torque wrenches are typically calibrated for both clockwise and counterclockwise directions with an accuracy of ±4%. They are equipped with high-contrast dial or scale indicators and often include audible and tactile click signals when the preset torque is reached. The wrench shafts and drive mechanisms are made from hardened alloy steel for durability and long service life, and the tools usually come with detailed use and calibration instructions.
Ratchet torque wrenches are widely used in automotive, aerospace, industrial maintenance, and manufacturing sectors where precise torque control is critical for safety and performance.
PRODUCT SPECIFICATION
Standards Compliance: ANSI/ASME B107.14, ISO 6789
Accuracy: ±4% clockwise, ±6% counterclockwise
Drive Sizes: 1/4", 3/8", 1/2", 3/4", 1" square drive
Torque Range: 10-100 Nm, 20-200 Nm, 50-500 Nm
Ratchet Mechanism: Positive locking action, minimum 8 indexing positions per full ratchet stroke
Calibration: Factory calibrated with certificate, adjustable or preset models available
Material: Hardened alloy steel, heat treated
Scale Type: Analog dial, micrometer scale, digital display
Direction: Bi-directional (clockwise and counterclockwise) operation options
Handle: Ergonomic grip, often knurled or coated for slip resistance
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