Hex Torque Wrench 4.00mm Universal

The Hex Torque Wrench 4.00mm Universal (Article# LS9-308) is constructed from surgical-grade stainless steel in a single-body, non-separable form. The working end features a 4.0mm square hex drive socket that accepts universal prosthetic driver attachments across multiple implant platforms. A fixed torque value of 30 Ncm is laser-engraved directly onto the instrument shaft, eliminating calibration guesswork at the chairside. The handle section incorporates a machined knurled grip pattern, providing controlled rotational force transfer even in gloved, fluid-exposed conditions.

Unlike adjustable-dial models, this dental implant torque wrench delivers a consistent, pre-set 30 Ncm output through an internal breakaway clutch mechanism, which disengages automatically once the target torque is reached, preventing component overtightening. The instrument withstands steam autoclave sterilization at 134°C and tolerates ultrasonic bath cleaning with neutral pH detergents. Surgical stainless steel construction resists corrosion from repeated exposure to oral biological fluids. The one-piece build maintains dimensional stability and torque accuracy across extended clinical service.

During dental implant prosthetic surgery, implantologists and restorative dentists use this abutment screw tightening tool to finalize abutment seating and secure prosthetic screws within osseointegrated implant fixtures. The clinician attaches the appropriate hex driver, positions the wrench over the target screw, and applies steady rotation. The breakaway mechanism releases at exactly 30 Ncm, the clinically accepted torque value for most abutment screw systems, ensuring consistent pre-load without risking implant fixture fracture or bone stress.

From the moment clinicians hold this instrument, the quality is unmistakable, and that’s entirely by design. Leader Surgical engineers each instrument with the working clinician in mind, delivering tools that perform exactly as expected, every single time, without fanfare or failure.

What is a 4.00mm Universal Hex Torque Wrench?
It is a specialized tool used to apply a specific amount of rotational force (torque) to fasteners, such as abutment screws or prosthetics, during dental implant procedures.