Z Live Center MT3 Drill Chuck 1/32-5/8 Inch Heavy Duty, 3MT Shank

Overview

Engineered for demanding workshops, this heavy-duty key-type drill chuck accepts MT3 shanks and delivers solid, repeatable grip across a range of bit sizes. The design features quenching-treated key parts for enhanced durability, helping you maintain steady performance through extended drilling sessions. With a focus on balance and precision, the jaws are engineered to minimize runout and deliver consistent clamping force as you feed material or switch bits.

Solid design and what's included

The chuck is paired with an MT3-JT33 arbor and comes with a chuck key, all pre-installed and lubricated to resist rust. This setup reduces the time you spend on assembly and maintenance, so you can focus on the task at hand. The mounting is described as JT33 in the package, with the arbor already in place for quick setup.

Compatibility and setup

Note that this drill chuck is MT3 specific; the spindle hole diameter must be 0.94 inches. Before first use, you may want to remove the arbor and chuck, clean the lubricants, and reassemble to ensure smooth operation and to prevent any initial slipping.

Specifications at a glance

• Clamping range: 1/32 inch to 5/8 inch
• Overall length: 3.66 inches
• Jaw accuracy: 0.005 inch
• Shank: MT3 (Morse Taper No. 3)

At a glance

• MT3 shank ensures compatibility with MT3 spindles
• Wide clamping range supports small drill bits up to 5/8 inch
• Balanced jaws for smoother operation
• Solid, pre-lubricated assembly ready for installation

Real-world use and benefits

In a busy shop, this chuck offers a dependable grip that can support precise hole placement in metal, wood, or plastic projects. Expect predictable bit engagement and straightforward bit changes, thanks to the balanced jaw design and robust construction. While results vary with tool setup, the combination of a sturdy MT3 shank and a broad clamping range can assist in fast, repeatable drilling tasks while maintaining tolerance control over time.

Care and maintenance

Keep the surfaces clean and lightly lubricated as recommended. Regular attention helps preserve clamping consistency and reduces the risk of surface rust on exposed parts, especially in humid environments. If you are unsure about fit, verify spindle diameter and MT3 compatibility before use.