Illustration of the part type. The photos show kits that include it.
knect-m-to-sq-3-8-extension-3in
KNECT (M) to 3/8-Inch Square Extension, 3-Inch
ProprietaryExtensionIn 2 kits
KNECT (M) to 3/8-Inch Square Extension, 3-Inch comes in 2 Klein Tools KNECT kits. The cheapest kit that includes it is the 65121IMPCT at $99.98 (TEquipment, 2026-10-18).
- Connects to
- KNECT (M), 3/8" Square Drive
- Type
- Proprietary (system-specific)
- Category
- Extension
Cheapest kit that includes it
$99.98
65121IMPCT · Deep-Well 3/8-Inch Drive Socket Set, SAE and Metric, 23-Piece · TEquipment, 2026-10-18See the 65121IMPCT →Kits that include the KNECT (M) to 3/8-Inch Square Extension, 3-Inch
| Kit | Qty | Kit price from |
|---|---|---|
 Deep-Well 3/8-Inch Drive Socket Set, SAE and Metric, 23-Piece65121IMPCT | 1 | $99.98 |
 3/8-Inch Deep and Shallow Impact Socket Set, SAE/Metric, 44-Piece65148HD | 1 | $129.98 |
Notes
Listed as "KNECT Extension" in the KNECT (M) 3/8-inch impact socket sets; works with the (M) pass-through wrench.
Other sizes and variants
Questions
Which kits include the KNECT (M) to 3/8-Inch Square Extension, 3-Inch?
65121IMPCT (1×), 65148HD (1×).
What is the cheapest way to get the KNECT (M) to 3/8-Inch Square Extension, 3-Inch?
Buy the 65121IMPCT, Deep-Well 3/8-Inch Drive Socket Set, SAE and Metric, 23-Piece, from $99.98. We have not found it sold on its own.
What does the KNECT (M) to 3/8-Inch Square Extension, 3-Inch connect to?
KNECT (M), 3/8" Square Drive.