Description
KKS UFB-2 MT2 Universal Facing & Boring Head — Full Kit
A genuine toolroom-grade boring and facing head from KKS, the UFB-2 is the kind of precision accessory that rarely turns up complete, in this condition, and ready to cut. Designed for use on milling machines and machining centres with an MT2 spindle, this unit gives you fine, repeatable radial adjustment of a single-point tool — essential for boring to an exact diameter, facing a shoulder to a precise depth, or producing a true circular form that an end mill simply can’t deliver. This example is a time capsule: full kit, original wooden case, both HSS blanks present, zero rust, no crash damage, and the feed screw carries no detectable backlash.
- Micrometric radial adjustment with readable graduation scale — The head features a graduated collar and engraved scale allowing precise radial offset of the tool holder. This is what separates a boring head from a roughing operation: you can sneak up on a final diameter in half-thou increments rather than swapping end mills or hoping an adjustable reamer has the range you need. Critical for bored holes that must match a bearing seat, bushing bore, or fit a shaft to a specific class of fit.
- Morse Taper 2 (MT2) shank with M8 drawbar thread — MT2 is one of the most common spindle tapers found on bench-top and knee mills, drill presses with milling capability, and smaller machining centres. The M8 drawbar thread means the shank pulls up positively against the spindle taper — no risk of the taper walking out under interrupted or eccentric cutting loads, which is exactly the kind of load a boring head generates on every revolution.
- No detectable backlash in the adjusting mechanism — On a used boring head, backlash in the cross-slide screw is the first thing to check and often the first thing to go. This unit has none. That means when you dial in a correction, the tool moves — it doesn’t lounge around in slop before picking up the thread. Clean, direct adjustment is non-negotiable for achieving repeatable bore sizes without test-cut roulette.
- Includes both HSS tool blanks and full original accessory set — The two included high-speed steel blanks give you immediate cutting capability. Grind them to a boring tool geometry or a facing profile on your bench grinder — standard toolroom practice. Having the original accessories present also means the tool holder slots, clamping screws, and drawbar socket are all confirmed-matching and not substituted with non-original hardware.
- Ideal for — boring bearing housings and bush seats to a target diameter, line boring on a knee mill, facing a boss or shoulder to an exact height, producing precision circular pockets in fixture plates, and any application where a true, single-point-generated cylindrical surface is required in a machine with an MT2 spindle.
Condition
(Used — Like New / Time Capsule Condition)
This UFB-2 presents in exceptional used condition — as close to new-old-stock as a used cutting tool accessory gets. The precision ground surfaces on the head body, the dovetail slide, and the MT2 shank show no rust, no fretting, no evidence of crash or impact damage, and no scoring from rubbing. The knurled adjustment thimble turns smoothly and positively with zero perceptible backlash in the feed screw — a strong indicator the head has seen light, careful use rather than production abuse. The engraved graduation scale is clean and fully legible. Both HSS tool blanks are present and unground, confirming the kit has been stored rather than raided for spares. The original wooden storage case is intact and functional with its original foam/padding supports holding each component securely. There is the expected light patina of age on some surfaces consistent with careful long-term storage, but nothing that affects accuracy, function, or clamping integrity. As with any used precision boring head, it is recommended practice to verify the dial graduation against a test bore and measure with a calibrated bore gauge or internal micrometer before committing to a critical job — standard toolroom housekeeping regardless of condition.
Included
- 1 x KKS UFB-2 Universal Facing & Boring Head — MT2 shank, M8 drawbar thread
- 1 x MT2 shank / arbor (fitted to head)
- 2 x HSS tool blanks (unground)
- 1 x Spanner / open-end wrench (original accessory)
- 1 x Hex key / Allen key (original accessory)
- 1 x Drift punch / additional accessory per original kit
- 1 x Original wooden storage case with fitted compartments
Not Included
- Drawbar (machine-supplied — verify M8 thread compatibility with your spindle drawbar before use)
- Carbide inserts or pre-ground boring bars (HSS blanks require bench grinding before first use)
Brand Information
KKS is a Japanese precision tooling manufacturer with a long-standing reputation in the toolroom and industrial metrology space. Japanese-made boring heads and precision accessories from this era are produced to the same exacting standards as more widely distributed names such as Nikken, NT Tool, and BIG Kaiser — tight tolerances, quality ground surfaces, and robust adjusting mechanisms built for repeatable production use. KKS tooling occupies the serious industrial tier, a step above import-grade accessories and fully comparable to equivalent German and Swiss toolroom hardware of the same period. For Australian machinists, Japanese-origin tooling of this vintage carries a well-earned reputation for lasting accuracy and build quality that justifies its place in a professional toolroom.
Specifications
| Feature | Specification |
|---|---|
| Brand | KKS |
| Model | UFB-2 |
| Type | Universal Facing & Boring Head |
| Spindle / Shank Taper | Morse Taper 2 (MT2) |
| Drawbar Thread | M8 Metric |
| Adjustment Type | Micrometric radial cross-slide with graduated collar and engraved scale |
| Backlash (as inspected) | None detected |
| Tool Blank Capacity | Square HSS blanks (see blanks included for sizing reference) |
| Material / Construction | Hardened and ground steel body; precision ground MT2 shank |
| Country of Origin | Japan |
| Condition | Used — Like New (time capsule condition, no rust, no damage) |
| Included Items | Boring head, MT2 arbor, 2x unground HSS blanks, spanner, hex key, drift, original wooden case |
| Not Included | Machine drawbar, pre-ground boring bars, carbide tooling |
Keywords
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