Mini Drill Chuck Set With Brass Shaft Coupling And Sleeve Adapters For 2.3mm And 3.17mm Motor Shafts, 4mm 5mm 6mm 8mm Chuck Sizes, 0.3mm To 4mm Drill Bits, Ideal For PCB Hobbyist Projects And Model Making

Single JT0 drill chuck kit with brass shaft coupling
✔️ Brass shaft coupling fits 2.3/3.17mm shafts; JT0 taper, 0.3-4mm bits

This compact drill chuck kit is designed to attach to mini motors and drills for precise micro-drilling on PCBs, models, and tiny components.

✅ JT0 taper with 6 mm inner hole and max clamping 4.2 mm
✅ Outer diameter 21.5 mm and 2°49'24.7 taper
✅ High carbon steel construction with brass shaft clamp
✅ Drill bits range 0.3-4 mm (0.01"-0.16")
✅ Kit includes 1 JT0 chuck, 1 wrench, 1 key, 1 sleeve
✅ Sleeve inner hole sizes: 4, 5, 6, 8 mm

💡 What is a JT0 mini drill chuck kit used for in PCB hobby projects?

It's handy for mounting a small drill chuck to compact motors to drill tiny holes precisely.

• Secure bit retention and stable alignment for high-speed micro-drilling
• Supports motor shafts of 2.3 mm or 3.17 mm with sleeve kits
• Optimizes PCB, model making, and tiny mechanical assemblies
• Easily completes in a compact workspace with included wrench, key, and sleeve