Two Size Markings

The size is marked in two ways on every socket—both as a high-visibility laser marking and a permanent stamped marking.

The size is marked in two ways on every socket—both as a high-visibility laser marking and a permanent stamped marking.

Access + Versatility

Fully Stepped Shoulders

The narrowed socket diameter goes all the way down to the base of the socket on small deep-length sizes. This allows for better reach into tight recessed areas.

Full-Length Socket Well

Not only is the socket a deep length, but the interior well also extends far into the socket, which allows for better fastener engagement in more situations.

Drive Tool Retention

Sockets work for both types of anvils found on 3/8 inch drive impact wrenches:

Friction Ring Anvil

Detent Pin Anvil

6-Point Socket Opening

Provides an exact fit for hex fasteners
Learn more

6-Point Socket Opening

Provides an exact fit for hex fasteners
Learn more

Prevents Fastener Round-Off

Prevents Fastener Round-Off

Radiused corners prevent fastener round-off by applying force to a fastener's flat sides rather than its corners.

Sockets Exceed ANSI Torque Standards

Each socket size meets a minimum of 1.3 times the ANSI/ASME standard for proof torque.

(A single-cycle test applies torque until a specified value is reached without failure or permanent deformation.)

INCH SERIES

	ANSI		TEKTON
Source: ASME B107.2 - 2002

METRIC SERIES

	ANSI		TEKTON
Source: ASME B107.33M - 2002

Note: There are no published ASME standards for 1/4 in., 9/32 in., 13/16 in., 7/8 in., 15/16 in., 1 in., 6 mm and 7 mm impact sockets in 3/8 inch drive.

High-Performing Steel Alloys

Part by part, we choose the best combination of steel alloys, heat treating specifications, and forming processes to meet the highest performance requirements. Learn more

50BV30 Chromium-Vanadium (Cr-V)

Show Elements

Carbon: 0.27 - 0.33%
Chromium: 0.30 - 0.50%
Manganese: 0.70 - 1.00%
Phosphorous: ≤0.030%
Silicon: ≤0.10%
Sulfur: ≤0.030%
Vanadium: 0.10 - 0.15%
Boron: ≥0.0005%
Iron: 97.86 - 98.47%

4140 Chromium-Molybdenum (Cr-Mo)

Show Elements

Carbon: 0.38 - 0.43%
Chromium: 0.80 - 1.10%
Manganese: 0.75 - 1.00%
Molybdenum: 0.15 - 0.30%
Nickel: ≤0.025%
Phosphorous: ≤0.025%
Silicon: 0.15 - 0.35%
Sulfur: ≤0.025%
Iron: 96.74 - 97.69%

6140 Chromium-Vanadium (Cr-V)

Show Elements

Carbon: 0.38 - 0.43%
Chromium: 0.50 - 0.70%
Manganese: 0.6 - 0.9%
Nickel: ≤0.030%
Phosphorous: ≤0.030%
Silicon: 0.15 - 0.35%
Sulfur: ≤0.030%
Vanadium: 0.10 - 0.15%
Iron: 97.38 - 98.18%

8660 Nickel-Chromium-Molybdenum (Ni-Cr-Mo)

Show Elements

Carbon: 0.56 - 0.64%
Chromium: 0.40 - 0.60%
Manganese: 0.75 - 1.00%
Molybdenum: 0.15 - 0.25%
Nickel: 0.40 - 0.70%
Phosphorous: ≤0.035%
Silicon: 0.15 - 0.35%
Sulfur: ≤0.04%
Vanadium: 0.15 - 0.25%
Iron: 96.13 - 97.36%

3/8 Inch Drive Deep 6-Point Impact Socket Set, 21-Piece (5/16-3/4 in., 8-19 mm) with Rails