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1/2 Inch Drive x 21 mm Deep 6-Point Impact Socket

Item #SID23121
 • Ships tomorrow
InchMetric

Size

8 mm
$7
9 mm
$7
10 mm
$8
11 mm
$8
12 mm
$8
13 mm
$8
14 mm
$8
15 mm
$8
16 mm
$8
17 mm
$9
18 mm
$9
19 mm
$9
20 mm
$9
21 mm
$10
22 mm
$10
23 mm
$10
24 mm
$11
25 mm
$11
26 mm
$13
27 mm
$13
28 mm
$13
29 mm
$13
30 mm
$13
31 mm
$13
32 mm
$13
33 mm
$15
34 mm
$15
35 mm
$15
36 mm
$16
37 mm
$16
38 mm
$16
$10.00

Also available in standard-length


Details

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.

TEKTON Impact Socket Markings

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

Access + Versatility

TEKTON Deep Impact Socket Fully-Stepped Shoulders

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.

TEKTON Deep Impact Socket Well

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 1/2 inch drive impact wrenches:

Impact Wrench Friction Ring

Friction Ring Anvil

 Impact Wrench Detent Pin

Detent Pin Anvil

TEKTON Impact Socket Drive End

6-Point Socket Opening

Provides an exact fit for hex fasteners
Learn more

TEKTON Deep Impact Socket Opening

6-Point Socket Opening

Provides an exact fit for hex fasteners
Learn more

Prevents Fastener Round-Off
TEKTON Impact Socket Radiused Corners
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

TEKTON 1/2 Inch Drive Deep Impact Sockets - Proof Torque Chart (Inch Series)
ANSITEKTON
Source: ASME B107.2 - 2002

METRIC SERIES

TEKTON 1/2 Inch Drive Deep Impact Sockets - Proof Torque Chart (Metric Series)
ANSITEKTON
Source: ASME B107.33M - 2002

Note: There are no published ASME standards for 5/16 in., 11/32 in., 8 mm, 37 mm, and 38 mm impact sockets in 1/2 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%

All pieces have a corrosion-resistant manganese phosphate coating.

Sockets (Standard and Deep Lengths)

INCH

Sockets that use 50BV30 Cr-V

5/16 – 1-1/4 in.
(50BV30 Cr-V)

Sockets that use 4140 Cr-Mo

1-5/16 – 1-1/2 in.
(4140 Cr-Mo)

METRIC

Sockets that use 50BV30 Cr-V

8 – 32 mm
(50BV30 Cr-V)

Sockets that use 4140 Cr-Mo

33 – 38 mm
(4140 Cr-Mo)

Accessories

Impact socket extensions that use 6140 Cr-V

3 in., 6 in., and 10 in. Extensions
(6140 Cr-V)

Impact socket adapter and reducer that use 8660 Ni-Cr-Mo

Adapter and Reducer
(8660 Ni-Cr-Mo)

Color coded icons showing that impact universal joints use 8660 Ni-Cr-Mo for the ball end and 4140 Cr-Mo for the socket end

Universal Joint
(Ball: 8660 Ni-Cr-Mo)
(Socket: 4140 Cr-Mo)

Specs

1/2 Inch Drive x 21 mm Deep 6-Point Impact Socket

Specs for 1/2 Inch Drive x 21 mm Deep 6-Point Impact Socket
Country of Origin
Taiwan
Item Weight
0.54 lb.