KURODA UFB-3 MT-4 Universal Boring Facing Head Set 0.01mm Japan w/ Case

Description

📋 Condition

This is a used KURODA UFB-3 precision boring head that requires service before use. The unit shows normal wear with light surface rust but no dents or major damage. The feed mechanism operates but the 0.01mm adjustment handwheel is very stiff (suspected lubricant hardening). Disassembly, cleaning, and re-lubrication should restore smooth operation. MT-4 taper and collet interior are in good condition. Clamp mechanism functions properly.

✅ Operation Check

Feed mechanism confirmed operational but handwheel resistance is heavy. Clamp mechanism and knock-off stop tested and working. MT-4 taper inspected and found to be in good condition. Collet holding system functions normally. This is a mechanical precision tool requiring no electrical power. Unit needs service (cleaning and lubrication) for optimal performance.

📦 Included Items

Complete set in steel storage case with dividers. Includes: Main boring head with MT-4 taper shank, 3 boring bars, 5 collets, 5 hex wrenches, 1 spanner wrench, 2 drift pins, 2 extension bars. Case key is missing. All tooling components included.

Please check the photos for the included accessories.

🔧 Product Info

The KURODA UFB-3 is a high-precision universal boring and facing head manufactured in Japan for professional metalworking applications. This mechanical tool mounts to milling machines via MT-4 (Morse Taper 4) shank and provides 0.01mm (0.0004 inch) incremental adjustment for precision boring, facing, and chamfering operations. Used in tool rooms, machine shops, and manufacturing facilities for accurate hole enlargement, surface finishing, and precision machining work. KURODA (Kuroda Seiko) is a respected Japanese manufacturer known for quality precision tooling.