Sturdy and Durable

The product is made of high-quality S45C high-carbon steel, using tempering treatment technology, with high strength, wear resistance, high precision, and long service life.

Work Assistant

Round jaw (clamping size: 1.49-2.99 in) and interchangeable jaws of the big round jaw (clamping size: 2.75-4.25 in), pin jaw (clamping size: 0.19-1.69 in), and step jaw (clamping size: 0.19-1.69 in) handle a wide range of clamping types and diameters to meet your work requirements.

Powerful Grip

The chuck provides an incredible grip when manually locked and won't come loose easily, giving you more confidence in your use.

Easy to Use

With the T-wrench, you can hold the workpiece in alignment with one hand and use the wrench to control the clamping jaws with the other. It is different from other chucks that use metal rods to control jaw tension, making it easier and simpler to operate.

Thoughtful Design

The chuck is self-centered so that each jaw can be adjusted to the center position. When the knurled ring is rotated, the jaws move together so that the workpiece can be quickly clamped in place, enabling the clamping of most shapes of workpieces.

Good Adaptability

A 4" chuck body with M33 standard thread, and a 3/4 "x16Tpi adapter provide great convenience.