Made to the thousandth.
Since 1924.
Holloway is a family-run precision engineering works in Sheffield. We machine, grind, fabricate and assemble critical parts for aerospace, medical, energy and rail, to drawing and on time.
Northvale Aero
Kestrel Medical
Calder Energy
Penrose Packaging
Ridings Rail
Brackley Racing
Harrow Hydraulics
Wexford Instruments
Ashdown Marine
§ 02 · Since 1924
Three generations. One standard.
Arthur Holloway opened a toolroom on Neepsend Lane with two lathes and a bench. A hundred years later his great-granddaughter runs forty-two machines in a restored brick works in Attercliffe.
The machines have changed. The habits haven’t: read the drawing twice, measure the first part properly, and ring the customer before guessing. That is why engineers who find us tend to stay.
§ Figures for 2026
Years of engineering
Machines on the floor
±0.005
Standard machined tolerance, mm
99.6%
On-time delivery, last 12 months
§ 03 · Capabilities
Six processes under one roof, so your part never leaves the building.
N° 01
CNC Milling
3, 4 and 5-axis milling of complex prismatic parts, from single prototypes to batches of thousands.
Tolerance
±0.005 mm
Max size
1,020 × 800 × 900 mm
Batch
1 – 5,000
Materials
Aluminium, steels, stainless, titanium, Inconel, plastics
Explore the process
N° 02
CNC Turning
Turned and turn-milled parts from 2 mm pins to 700 mm shafts, on sliding-head, twin-spindle and heavy-duty lathes.
Tolerance
±0.005 mm
Max size
Ø 700 × 2,000 mm
Batch
1 – 50,000
Materials
Steels, stainless, brass, bronze, titanium, PEEK
Explore the process
N° 03
Precision Grinding
Cylindrical and surface grinding for fits, finishes and flatness that a cutting tool cannot reach.
Tolerance
±0.002 mm
Max size
Ø 350 × 1,000 mm
Batch
1 – 2,000
Materials
Hardened steels, tool steels, stainless, carbide
Explore the process
N° 04
Sheet Metal & Fabrication
Laser cutting, forming, welding and finishing for enclosures, frames and guarding.
Tolerance
±0.1 mm
Max size
3,000 × 1,500 mm sheet
Batch
1 – 1,000
Materials
Mild steel, stainless, aluminium
Explore the process
N° 05
Toolmaking & Fixtures
Jigs, fixtures, gauges and press tools, designed and built in our own toolroom.
Tolerance
±0.003 mm
Max size
1,000 × 500 mm
Batch
One-offs
Materials
Tool steels, aluminium, carbide
Explore the process
N° 06
Assembly & Kitting
Sub-assembly, testing, kitting and packing, so parts arrive ready to fit.
Tolerance
To drawing
Max size
Bench to floor-standing
Batch
1 – 10,000
Materials
Machined, fabricated and bought-in parts
Explore the process
From drawing to delivery, in five steps.
§ 05 · Industries
Parts for industries that can’t afford a bad one.
§ 06 · Selected work
Results we can put a number on.
§ 08 · Quality
Certified, audited and measured.
Every order leaves with a certificate of conformity. First article reports, CMM data and material certs come as standard on aerospace and medical work.
§ 09 · In their words
Engineers who stay.
“Holloway took a part everyone found difficult and made it boring. That is the best thing I can say about a supplier.”
§ 10 · From the works
News, investment and people.
§ Request a quote