Pro Grade Taper Mount Drill Chuck 0.125 to 0.75 Inch Capacity JT-4 Taper, Heavy Duty Alloy Steel, Heat Treated Jaws, 0.75 Inch Compatible, Built Tough for Milling and Drilling, 90 Day Warranty

This JT-4 taper mount drill chuck accepts 1/8" to 3/4" tooling (0.125-0.75 in) and is built for milling and drilling in busy workshops. All components are heat-treated high-grade alloy steel, and the jaws are precision-fitted to withstand high torque (up to 115 PSI). It meets JIS B4634E specifications and is backed by a 90-day warranty against manufacturing defects.

✅ 1/8 to 3/4 inch capacity JT-4 taper mount
✅ Heat-treated high-grade alloy steel construction
✅ Precision-fitted jaws resist 115 PSI torque
✅ Meets JIS B4634E specifications
✅ 90-day warranty against manufacturing defects

💡 What is a drill chuck with JT-4 taper used for in milling and metalworking operations?

It's a handy, versatile part that secures drill bits in machining setups, enabling accurate, repeatable holes.

• Handy for mounting 1/8 to 3/4 inch tooling with reliable alignment
• JT-4 taper provides a solid, quick-change fit in compatible spindles
• Heat-treated high-grade alloy steel construction boosts durability
• Supports up to 115 PSI torque for consistent drilling performance