	System of Measurement System of Measurement

Inch

Metric

	Size Size

5/64"

	For Drive Style For Drive Style


External Square	External Hex

Square	External 8- Point

	Opening Shape Opening Shape


4-Point	Rounded

Square	Hex

	Wrench Style Wrench Style


Socket	Open End

Box	Square Drive

	Socket Shape Socket Shape

	Square Drive Size Square Drive Size

	Individual/Set Individual/Set

Individual

Set

	Overall Length Overall Length

	Head Style Head Style


Standard	Offset

	Material Material

Steel

Iron

Aluminum

	Finish Finish

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Socket Style Socket Style


Standard	Bit

Offset

	Head Thickness Head Thickness

	OD OD

	Number of Heads Number of Heads

	Wrench Type Wrench Type

Standard

Torque

	Bolt Clearance Style Bolt Clearance Style


Standard	Deep

Extra Deep

	Drive Type Drive Type

Manual

Impact

	Opening Angle Opening Angle

	Specifications Met Specifications Met

ASME

DIN

	Bolt Clearance Depth Bolt Clearance Depth

621 Products

Square Drive Sockets and Ratchet Wrenches

Socket Wrenches

Open-End Wrenches

Box Wrenches

Changeable-Head Torque Wrenches