Halstead Precision (512) 555-0147 Request a quoteGet a quote
CNC machining · Round Rock, Texas · Est. 1994 · Round Rock, TX

Machined to print. Held to half a thou.

Prototypes and low- to mid-volume production parts — milled, turned and Swiss-machined in aluminum, stainless, titanium, brass and engineering plastics. Inspected in-house and shipped with the paperwork your quality team asks for.

Request a quote Capabilities & tolerances
Tightest tolerance
±0.0005 in.
Max. milling travel
50 × 20 × 25 in.
Swiss bar capacity
Ø1.26 in.
Quality system
ISO 9001:2015
01CapabilitiesMilling · Turning · Swiss

Five processes, one shop, one quality system.

Every part is programmed, machined and inspected under one roof. No brokered work, no unnamed subcontractors between your drawing and your parts. Finishing and heat treat go to certified vendors we audit, and their certs ship with ours.

Table 1 — Process capabilityUnits: inch
Process capability by machining process, in inches
Process Configuration Work envelope Standard Tightest Quantities
1.13-axis milling Vertical machining centers, 40-taper, in-process probing 50 × 20 × 25 ±0.005 ±0.0005 1 – 5,000
1.24-axis milling VMC with 4th-axis rotary — indexed or full wrap 50 × 20 × 25 ±0.005 ±0.0005 1 – 2,500
1.35-axis milling Trunnion machines, 3+2 and full simultaneous 30 × 20 × 20 ±0.005 ±0.0005 1 – 1,000
1.4CNC turning Lathes with live tooling, Y-axis and bar feed Ø10.3 × 21 ±0.002 ±0.0005 1 – 5,000
1.5Swiss turning Sliding headstock, guide bushing, bar-fed, unattended runs Ø0.04 – 1.26 ±0.001 ±0.0005 100 – 25,000
Table 2 — General tolerancesInch · Ra in µin
Standard and precision tolerances by feature
FeatureStandardPrecision
Linear dimensions±0.005±0.0005
Hole Ø, reamed or bored±0.001±0.0005
Turned OD / ID±0.002±0.0005
True positionØ0.005Ø0.001
Flatness0.0020.0005
Perpendicularity0.0020.0005
Runout (TIR)0.0020.0005
Angles±0°30′±0°05′
Surface finish, Ra63 µin16 µin
Threads2A / 2B3A / 3B

What's achievable depends on the feature. Size, wall thickness and material all move the number. If a callout needs grinding or lapping, the quote says so. We don't promise it off the mill.

Table 3 — Equipment13 machines
CNC equipment list with travels and capacity
QtyMachineTravel / cap.
3Haas VF‑2SS3-axis VMC30 × 16 × 20
2Haas VF‑4SSVMC + 4th-axis rotary50 × 20 × 25
2Haas UMC‑750SS5-axis trunnion30 × 20 × 20
1DMG MORI DMU 505-axis simultaneous25.6 × 20.5 × 18.7
2Haas ST‑20YLathe, live tool, Y-axisØ10.3 × 21
2Citizen L20Swiss-typeØ0.79 bar
1Star SR‑32JSwiss-typeØ1.26 bar

Two shifts, Monday–Friday. 24,000 sq ft facility with a climate-controlled inspection lab.

02Materials5 families · 30+ grades

Certified stock, traceable to the heat.

We buy from domestic mills and service centers and file a mill test report for every lot. Heat numbers follow the job from saw to shipping, so the cert on your desk matches the metal in your hand.

Cylindrical stainless part being drilled on a five-axis trunnion machining center, surrounded by chips
Fig. 1 — 5-axis trunnionStainless
01AL

Aluminum

6061-T6/T651 · 7075-T6/T651 · 2024-T351 · 5052-H32 · MIC-6 cast plate

Finishes
Anodize Type II & III (MIL-PRF-8625), chem film (MIL-DTL-5541), bead blast
Typical parts
Housings, brackets, manifolds, fixtures
02SS

Stainless steel

303 · 304/304L · 316/316L · 17-4 PH (H900–H1150) · 15-5 PH · 416

Finishes
Passivation (ASTM A967, AMS 2700), electropolish
Typical parts
Fluid fittings, shafts, instrument components
03TI

Titanium

Grade 2 (CP) · Grade 5 Ti-6Al-4V (AMS 4928) · Grade 23 Ti-6Al-4V ELI (ASTM F136)

Finishes
Anodize (AMS 2488), bead blast, passivation
Typical parts
Implant prototypes, airframe fittings, lightweight structures
04CU

Brass & copper

C360 free-cutting brass (ASTM B16) · C260 cartridge brass · C110 copper

Finishes
Nickel and tin plate, as-machined
Typical parts
Fittings, electrical contacts, bushings
05PL

Engineering plastics

Acetal (Delrin®) · PEEK · Ultem® (PEI) · Nylon 6/6 · PTFE · UHMW-PE · Polycarbonate

Notes
Stress-relieved stock for tight work. Machined dry or with plastic-safe coolant.
Typical parts
Insulators, wear parts, medical fixtures, manifolds

Not listed? We also run 4140, 1018 and 12L14 steel, and we take customer-supplied material with certs. DFARS-compliant and domestic-melt material is available on request.

03QualityISO 9001:2015 certified

Every shipment carries its own proof.

Parts are checked on a CMM and a vision system in a climate-controlled lab. The reports go in the box with the parts, so your receiving inspection doesn't have to wait on a follow-up email.

Certified quality management system
9001:2015

Registered to ISO 9001:2015 and audited every year by an accredited registrar. Gauges are calibrated on a fixed schedule, with calibration traceable to NIST.

  • Certificate of Conformance Every order
  • Material certs, heat-traceable Every order
  • Dimensional inspection report On request
  • First Article Inspection, AS9102 New P/N or rev
  • PPAP, levels 1–3 Automotive
  • Finish & heat-treat certs When applicable
Dimensional inspection reportPart HP-10427 · Rev C · 6061-T6
S/N 0412Excerpt · 6 of 38 characteristics
Sample dimensional inspection report excerpt, all characteristics in tolerance
No.CharacteristicRequirementActualResult
01Ø Bore, datum B0.5000 +.0005/−00.5002OK
02Overall length2.2500 ±.00102.2496OK
03Position, 4× Ø0.1250Ø.0020 |A|B|C|.0011OK
04Flatness, Datum A face.0010.0004OK
05Perpendicularity, Bore B to A.0010.0006OK
06Surface finish, bore32 µin Ra max21 µinOK
Mitutoyo CRYSTA-Apex CMM38 / 38 in tolerance

Sample report format — shipped with parts on request · Swipe table →

Bridge-type coordinate measuring machine on a granite table in an inspection lab
Fig. 2 — Coordinate measuring machineInspection lab
Inspection equipment
CMM
Mitutoyo CRYSTA-Apex, programmed from your model
Vision
Keyence IM-8000 image dimension system
Surface
Mitutoyo SJ-210 roughness tester, Ra / Rz
Gauging
Pin, ring and thread gauges, height gauges, gauge blocks
04IndustriesShare of 2025 shop hours

Where a bad part costs more than the part.

Most of what we make goes into assemblies we never see finished. We ask what the part does anyway, because it changes how we fixture it, what we inspect and what we flag before cutting metal.

Bars show share of 2025 shop hours

01

Aerospace

Brackets, manifolds, actuator housings, fittings and sensor mounts for airframe and ground-support programs.

  • AS9102 FAI
  • Full lot traceability
  • DFARS material
02

Medical

Instrument components, implant prototypes, device housings and test fixtures for device OEMs.

  • Ti-6Al-4V ELI · 316L
  • Passivation
  • Part marking
03

Defense

Enclosures, optical mounts, connector hardware and vehicle components, built to controlled drawings.

  • ITAR registered
  • Controlled-data handling
  • DFARS material
04

Automotive

Prototype and low-volume powertrain, EV and motorsport components, plus production fixtures and gauges.

  • PPAP levels 1–3
  • Quantity breaks to 5,000
  • Fixtures & gauges
05Request a quoteReply within 1 business day

Send the print. We'll send a price.

Upload a 3D model and a 2D drawing with tolerances. Most quotes go out within two business days, priced at each quantity break you ask for.

RFQ — Request for quotationSheet 1 of 1
AContactAll fields required unless marked

BDrawings & models

ITAR / EAR-controlled data? Don't upload it here — email rfq@halsteadprecision.com for a secure transfer.

CPart requirements

Quote several breaks at once — separate with commas.

The tightest tolerance on the print.

We reply within one business day. Your files are used for quoting only and never shared outside Halstead.

RFQ received.

An engineer will review your files and reply within one business day.

Reference
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