Last I heard Apex is no longer part of Danaher anymore. Just bought an Armstrong (Apex) wrench a few weeks ago, still made in the USA.
taken from Wiki......
Apex tool group includes:
Allen – Hex keys,
Armstrong Tools – Industrial hand tools,
Atkins – Hacksaws
Belzer – Mechanic's hand tools
Campbell – Manufactures chains and clamps.
Caulkmaster – Pneumatic dispensing guns.
Collins – Machetes, shovels, and axes
Crescent – Produces general hand tools and tool sets.
Delta – tool boxes
Diamond – Horseshoes and farrier tools.
Erem – Precision pliers.
GearWrench – Ratcheting wrenches and hand tools,
H.K. Porter – Bolt and cable cutters.
Iseli – Precision matched parts
Jacob's Chuck – drill chucks
JOBOX – truck boxes and site storage
K-D Tools – mechanic's hand and specialty tools
K&F – files and rasps
Kahnetics – Dispensing systems.
Lufkin – Manufactures measuring tools such as calipers, gauges, micrometers, and measuring tapes.
Mayle – Mechanic's hand tools
Nicholson – Produces files, rasps, and saws.
Plumb – Striking tools, such as hammers, axes, and chisels.
SATA – Mechanic's hand tools.
Spline Gauges – gauges
Weller – Soldering tools.
Wire-wrap – Electrical connection equipment.
Wiss – Scissors and snips.
Xcelite – Electronics tools such as general and specialized screwdrivers and pliers.
The Apex Tool Group Power Tool Division is headquartered in Lexington, South Carolina. It is made up of the following brands:
Airetool – tube cleaners and expanders
Apex – production impact sockets, bits, and universal joints
Buckeye – material embossing
Cleco – assembly tools
Cooper Automation – automated fastening systems
DGD – automated systems
Doler – advanced drilling equipment
Dotco – material removal tools
Geta
Master Power – industrial air tools
Metronix – Servos, drivers, and speed controls
Quackenbush – advanced drilling equipment
Recoules – drilling tools
Rotor – assembly equipment
Utica – torque measurement and control tools
Danaher
Test & Measurement:
Amprobe
Arbor Networks
Fluke
Comark
Datapaq
DH Instruments
Hart Scientific
Janos Technology
Ircon
Raytek
Datapaq
Fluke Networks
Visual Network Systems Ltd
Keithley Instruments
Tektronix
Tektronix Communications
VSS Monitoring[18]
Environmental
ChemTreat
Gilbarco Veeder-Root
Gasboy
Red Jacket
Veeder-Root
Hach
Environmental Test Systems
GLI
HACH LANGE
HIAC
Polymetron
Hydrolab
Lachat Instruments
Marsh-McBirney
MET ONE
Orbisphere
Radiometer Analytical
Trojan Technologies
WetLabs
Seabird Electronics
Satlantic
Dental
DEXIS
Gendex
KaVo
Kerr
Ormco
Pelton & Crane
PaloDEx
Instrumentarium Dental
Soredex
Total Care
Life Sciences & Diagnostics
AB Sciex
Hemocue
Beckman Coulter
Leica Biosystems
Leica Microsystems
Molecular Devices
Radiometer
Industrial Technologies
Danaher Motion
Dover
Kollmorgen
Calzoni
Portescap
Scientific Hexis
Thomson
Danaher Specialty Products
Linx Printing Technologies[19]
Qualitrol
Videojet
X-Rite
Pantone[20]
Esko Graphics
More Danaher:
ALLTEC | FOBA Laser Marking + Engraving Solutions [21]
Anderson Negele
Anderson Instrument
Negele Messtechnik
Armstrong Tools- In October 2012 Danaher and Cooper sold Apex to Bain Capital for about $1.6 billion.
Dolan Jenner
Dynapar
Northstar
Harowe
Hengstler
ELE
Gems Sensors & Controls
G&L Motion Control, Inc
Hengstler
Hennessy Industries
Imaging Sciences International
Invetech
Jacobs Vehicle Systems
Joslyn Clark
Matco Tools
McCrometer
Navman Wireless
Qualitrol
Iris Power
Neoptix
Robin Electronics
Setra Systems
Sonix
SybronEndo
Teletrac
Venture Measurement
Bindicator
Kistler-Morse
Levelite
Niagara Meters
West Control Solutions
CAL Controls
Partlow
PMA
West Instruments