Condition
Used; hand-tested and in good working order. Jaws and feed mechanisms operate smoothly. Visible shop patina from normal use.

Product use / description
Large-capacity boring & facing head for precision boring, fine diameter adjustments, and facing/undercutting operations on milling machines and jig borers. The MT4 shank suits heavier toolroom mills, while the body accepts 22 mm boring bars for rigid setups. Includes an adapter for HSS or carbide shank tools, giving flexibility from roughing to fine finishing.

Brand
KKS (Kuroda) — Model UFB-4S

Features / Specs

Item	Detail
Model	UFB-4S
Head type	Boring & facing head (adjustable)
Shank / mount	MT4 (Morse Taper 4)
Bar capacity	Ø22 mm boring bar holes
Tooling adapter	Adapter for HSS/carbide shank tools (included)
Functions	Precision boring, facing, undercutting, counterboring
Adjustment	Fine radial dial adjustment for setting bore size
Condition notes	Smooth action; cosmetic patina; sold as-is
Included	Head with MT4 shank and tooling adapter (no additional accessories)
Typical uses	Large-diameter bores, seat/shoulder finishing, accurate facing on mills/jig borers

Sold as-is.

Boring Head

KKS Kuroda UFB-4S MT4 Boring Head