KNECT Deep-Well 3/8-Inch Drive Socket Set, SAE and Metric, 23-Piece
Klein Tools · 65121IMPCT · UPC 092644380297

KNECT Deep-Well 3/8-Inch Drive Socket Set, SAE and Metric, 23-Piece

KNECT (M)23 piecesPartly mapped

The Klein Tools 65121IMPCT is a 23-piece set that contains 19 sockets, 2 extensions, 1 adapter (plus pieces not mapped yet; see the notes below). The lowest price we observed is $99.98 at TEquipment (2026-10-18).

Lowest observed price
$99.98$149.98
at TEquipment · 4 listings up to $131.98 · as of 2026-10-18Check price at TEquipment ↗

What’s in the 65121IMPCT

PartQtyKlein Tools lists it as
Deep-Well Impact Socket, 3/8-Inch Drive, 5/16-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 3/8-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 7/16-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 1/2-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 9/16-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 5/8-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 11/16-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 3/4-Inch1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 13/16-Inchonly here1(9) SAE Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 8 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 10 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 11 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 12 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 13 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 14 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 15 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 16 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 17 mm1(11) Metric Impact Sockets
Deep-Well Impact Socket, 3/8-Inch Drive, 19 mm1(11) Metric Impact Sockets
Impact Adapter, 1/4-Inch Hex to 3/8-Inch Square, 3-Inch1(1) 1/4" Hex to 3/8" Square Adapter
KNECT (M) to 3/8-Inch Square Extension, 3-Inch1(1) 3" KNECT Extension
KNECT (M) to 3/8-Inch Square Extension, 6-Inch1(1) 6" KNECT Extension
Storage case1(1) Case

Unmapped: one metric socket (Included says 11, Socket Size lists 10).

As described by Klein Tools

  • Included: (1) 1/4" Hex to 3/8" Square Adapter, (1) 6" and (1) 3" KNECT™ Extension, (9) SAE Impact Sockets, (11) Metric Impact Sockets, (1) Case
  • Number of Pieces: 23
  • Socket Size: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 8, 10, 11, 12, 13, 14, 15, 16, 17, 19
  • Drive Size: 3/8"
  • Feature: 23-piece SAE and metric socket set contains most common standard deep-well impact socket sizes up to 13/16-Inch and 19 mm
  • Feature: Long lasting, industry-standard color-coded painted rings and bold stamped size and high contrast paint infill size markings to quickly identify socket sizes
  • Feature: Includes a 3-Inch long impact adapter which allows the socket to be used with a 1/4-Inch impact driver

Prices we’ve seen

RetailerPriceTypeSeen
TEquipment$99.98 (was $149.98)listing2026-10-18
Haus of Tools$99.98listing2026-10-18
Test Equipment Depot$119.98 (was $149.98)listing2026-10-18
Global Test Supply$131.98 (was $149.98)listing2026-10-18

Prices come from retailer listings and deal posts found on the date shown. They change often; the retailer’s page is authoritative.

Parts you can only get in this kit

Among the Klein Tools KNECT kits we track, these pieces appear only in the 65121IMPCT.

Kits that share parts with the 65121IMPCT

All kits →
KNECT 3/8-Inch Deep and Shallow Impact Socket Set, SAE/Metric, 44-Piece
65148HD3/8-Inch Deep and Shallow Impact Socket Set, SAE/Metric, 44-Piece21 shared parts
from $129.98KNECT (M)
KNECT Deep-Well 3/8-Inch Drive Impact Socket Set, SAE, 9-Piece
65109IMPCTDeep-Well 3/8-Inch Drive Impact Socket Set, SAE, 9-Piece8 shared parts
from $49.98KNECT (M)
KNECT Deep-Well 3/8-Inch Drive Impact Socket Set, Metric, 9-Piece
65109IMPCTMDeep-Well 3/8-Inch Drive Impact Socket Set, Metric, 9-Piece7 shared parts
from $49.98KNECT (M)

Questions

What comes in the Klein Tools 65121IMPCT?

The Klein Tools 65121IMPCT is a 23-piece set that contains 19 sockets, 2 extensions, 1 adapter (plus pieces not mapped yet; see the notes below).

How much does the 65121IMPCT cost?

We found 4 retail listings from $99.98 to $131.98 (as of 2026-10-18). The lowest was $99.98 at TEquipment.

Which Klein Tools KNECT connection does the 65121IMPCT use?

Its pieces use KNECT (M). KNECT (M) is the larger KNECT connection, 3/8-inch class, for higher torque.

Which kits share parts with the 65121IMPCT?

65148HD (21 shared parts), 65109IMPCT (8 shared parts), 65109IMPCTM (7 shared parts).

Sources

  1. Klein datasheet
  2. Klein Tools distributor product feed (KleinTools/Distributor.txt), retrieved 2026-10-18
  3. https://www.acetool.com/products/klein-65121impct-knect%e2%84%a2-deep-well-3-8-inch-drive-socket-set-sae-and-metric-23-piece
  4. https://www.tenaquip.com/product/klein-tools-knect-drive-socket-set-23-pcs-impact-3-8-drive-size-deep-65121impct-uaz499