
Asteroid Precision
ISO 9001 • ITAR • FFL • SOT
Line Card




We are known for our constant innovation, state of the art technology, highly skilled personnel, and our firm commitment to quality. We have become a preferred supplier for the most well-known OEMs in a range of industries including automotive, medical, military, hydraulic, and industrial.
Centerless Grinding
- Robotic loading; multi-feature grinds in one cycle
- Tight gauging with auto compensation; repeatable < 0.0004"
- Equipment: Cincinnati Milacron, Agathon 255, MPC-600/450/250
ID Grinding
- Okamoto; Studer S122 & S110
- Laser/vision metrology; roundness to 0.00001"
- Leak-critical bores for hydraulics/medical
Cylindrical Grinding
- Up to Ø 5" × 30" length; plunge & angle wheels
- Toyoda CNC (GL4/Select G); Studer Favorit
- Automatic dressing; multiple features per setup
Swiss Turning
- Ø 0.04 mm–32 mm; lengths 0.01–6"
- Tolerances to 0.0001"; 11-axis; live tooling; B-axis
- Secondary grinding/honing managed for parts-complete
Certifications | ISO 9001:2015 • ITAR • FFL Type 7 • SOT |
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Core processes | Swiss turning • Milling • Precision grinding (centerless, cylindrical, ID) • Honing |
Swiss turning window | Ø 0.04 mm–32 mm (to 1.25") • lengths 0.01–6" • tolerances to ±0.0001" |
Grinding window | Up to Ø 5" × 30" length • auto length compensation & gauging capable of < 0.0004" • auto dressing • robotic ops |
Representative equipment | Cincinnati Milacron; Agathon 255 (robotic); MPC-600/450/250 • Toyoda GL4/Select G; Studer Favorit • Okamoto; Studer S122/S110 • Engis multi-stations & SPM (honing) |
Quality & metrology | OGP Vision (laser) • MMQ 400 • CS-3200 • MicroVu • geometric gauging to 0.00001" roundness • laser micrometers repeatability 0.00002" |
Documentation | PPAP (Level 3) • SPC • FAI • Certificate of Compliance • staged inspections (FAI, in-process, random sampling, final) |
Industries | Automotive • Firearms & Defense • Hydraulics • Medical |
Locations | Des Plaines, IL • Wheeling, IL |
A great fit for
- Tight-tolerance parts requiring centerless/ID/cylindrical grinding with gauged repeatability
- Swiss-turned micro/miniature components with downstream grinding/honing
- Programs needing PPAP/FAI, SPC, and documented inspection flow
Not a fit for…
- Same-day emergency builds
- Large prismatic fabrications or sheet-metal assemblies
- Non-domestic sourcing requests








Swiss turning (Ø 0.04 mm–32 mm / to 1.25″, lengths 0.01″–6″, to ±0.0001″)
Multi-axis mills & mill-turns (Fanuc Robodrill, Nakamura, Brother, Yam Seiki, etc.)
Centerless grinding (Cincinnati Milacron, Agathon 255 robotic, MPC-600/450/250)
Cylindrical grinding (Toyoda GL4 / Select G, Studer Favorit)
ID grinding (Okamoto; Studer S122/S110)
Honing (Engis multi-stations, Engis SPM)
Metrology (OGP Vision/laser, MMQ 400, CS-3200, MicroVu; laser mic repeatability ~0.00002″)
Heat treat (through/induction/age-harden, stress-relief)
Coatings & plating (nitriding, phosphate, black oxide, nickel, etc.)
Surface finishing (tumble, deburr, bead blast) beyond in-house as needed
Specialty testing/NDT via approved partners (X-ray/CT, dye penetrant, mag particle)
Marking/packaging per spec (incl. labeling, protective packaging)
Automotive (manifolds, gears, spools, plungers, pins, valves)
Firearms & Defense (bolts, carriers, gas keys, ejectors, barrel extensions, pins, LPKs)
Hydraulics/Pneumatics (poppets, sleeves, valves, spools, shafts, housings)
Medical & Dental (motor housings, probes, picks, shafts, burrs, pins, chambers)
Industrial/General OEM components
Swiss turning (miniature/tight-tolerance; live tooling, B-axis, up to 11 axes)
Precision grinding (centerless, cylindrical, ID) with auto gauging/compensation
Milling and mill-turn machining; secondary ops (drill, mill, broach, coin)
Honing to final geometry and finish
Quality documentation & control (FAI, PPAP L3, SPC, staged inspections)
Lot traceability, C of C; production packaging and kitting
ISO 9001:2015
ITAR
FFL
SOT

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