On Swiss and sub-spindle lathes the part is measured in microns and the machine is expected to run unattended overnight. That’s where tooling stops being a line item and starts deciding whether the job holds size or shuts down at 2 a.m. We bring the newest Tungaloy NTK Swiss-type system — quick-change modular heads, chip control tuned for automatics, and micron-level center-height control — to the medical, micro, and precision parts that leave no margin for error.
For Swiss and sub-spindle work where every micron and every second counts: ModuMiniTurn modular heads swap in with high repeatability, TinyMiniTurn reaches the tiniest bores, and the N-Swiss quick-change system — developed with Citizen and Alps Tool — keeps changeovers fast. Thread whirling and parting come tuned for small parts, so less setup time turns into more spindle time.
Multi-pass front turning is safe but slow and leaves seam lines; single-pass is fast but fights chatter, finish, and chip control. Front Max (TFX) is built for the large depth-of-cut single pass — up to 5 mm (.197″) in one pass — with an advanced chipbreaker for chip control, a high rake angle to cut resistance and chatter, a tangential clamp for rigidity, and wiper inserts that protect the nose radius and hold the finish. Offered in DM4 (stainless, reduces built-up edge) and ST4 (versatile, high-temp oxidation resistance).
In small-diameter turning (ø10 mm and under) center height quietly governs everything — effective rake angle, flank wear, burr formation, even dimensional accuracy. A few hundredths off the centerline changes how the part cuts. The DS-ACH holder replaces guess-and-rotate shank adjustment with a patented high-rigidity wedge mechanism that sets center height precisely and repeatably, so an unattended run stays stable from the first part to the last.
When the depth of cut shrinks to almost nothing, most chipbreakers stop breaking chips — and finish and dimensions start to drift. The AMX is built for exactly that regime: reliable chip control at depths of 0.3 mm and below, with a sharp, low-pressure edge (down to an R0.03 radius) that shears cleanly on the fine, high-precision passes Swiss-type and medical parts depend on.
Built for front turning on Swiss CNC lathes running the vibration-cutting (LFV) function, the TMV geometry minimizes cutting resistance and keeps chips forming cleanly even as the tool oscillates. Its added wiper holds a superior surface finish at higher feeds — so you can push feed toward double the rate and tool life, and cut machining time roughly in half, without giving up finish.
NTK650 is a PVD-coated carbide grade tuned for small-diameter turning (up to ø20 mm) across steel, stainless, and heat-resistant work (P / M / S). Strong anti-adhesion properties suppress built-up edge and streaking, so surface finish stays consistent and inspection time drops — with NTK case studies showing anywhere from 1.8× to 5× the tool life of the grade it replaced.
Hexagon, square, and hexalobular (6-lobe) socket forms usually mean a rotary broach — high tool pressure that shoves small parts off location, plus a dedicated tool per size. Shaper Duo shapes those forms right on the lathe with a solid-carbide, PVD-coated insert in a Stick Duo sleeve holder: low cutting forces that suit small-diameter parts, better cycle time and finish than broaching, and one tool line covering a full range of sizes.
Fighting stockouts, chasing cycle time, tired of a 1-800 catalog, or sizing up new machine capacity? Start a conversation with the independent team that handles all of it.
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