Both Directions In One Two-Piece Set
Choose the increaser for a 1/2-inch tool and 3/4-inch socket, or the reducer for a 3/4-inch tool and 1/2-inch socket. The pair contains two different fixed-direction adapters.

LX-403 supplies two different impact adapters: a 1/2-inch female to 3/4-inch male increaser and a 3/4-inch female to 1/2-inch male reducer. This pair covers either drive mismatch, with chrome-molybdenum construction and detent retention for compatible tools and sockets.
Choose the increaser for a 1/2-inch tool and 3/4-inch socket, or the reducer for a 3/4-inch tool and 1/2-inch socket. The pair contains two different fixed-direction adapters.

The set has chrome-molybdenum steel construction as fully impact rated, with manganese phosphate coating. Select matching impact-rated components and verify application limits.

The package lists one 1/2-to-3/4-inch increaser, one 3/4-to-1/2-inch reducer and an organizing tray. Tools, sockets and a verified pin-and-ring kit are not listed contents.

The female end fits the tool anvil; the male end fits the socket drive recess. Socket drive size is separate from the fastener opening.
| Tool and socket | Works | What to check |
|---|---|---|
| 1/2-inch tool, 3/4-inch socket | With supplied increaser | Choose the 1/2-inch female to 3/4-inch male adapter. |
| 3/4-inch tool, 1/2-inch socket | With supplied reducer | Choose the 3/4-inch female to 1/2-inch male adapter. |
| 1/4-inch hex drill chuck | No direct square-drive connection | A hex chuck and square-drive anvil are different connections; no direct-fit promise is established. |
| Other square-drive sizes | No listed direct conversion | This product lists 1/2-inch and 3/4-inch connections. |
| Impact-rated sockets and matching anvils | Within component limits | Confirm retention, drive fit and limits for every component. |
| Pin and O-ring retention systems | Tool-specific verification needed | Check retention provisions; exact pin dimensions and compatibility are not specified. |
The pair combines a 1/2-inch female to 3/4-inch male increaser with a 3/4-inch female to 1/2-inch male reducer. Select one adapter according to the actual drive mismatch.
Choose the reducer marked 3/4 input and 1/2 output when the socket has a 1/2-inch drive recess. The other adapter in the pair serves a different input direction.
Use the included increaser with its 1/2-inch female recess on the tool and 3/4-inch male square in the socket. Keep the unused reverse-direction adapter separate.
Each member has a fixed female recess and male projection. Two different adapters provide the two directions; turning one around does not exchange its square sizes.
Neither included adapter is listed with a 1/4-inch hex shank. Both are square-drive conversions between 1/2 and 3/4 inch, so verify a compatible tool anvil.
It supplies drive adapters rather than sockets that fit bolt or nut heads. Select the correctly sized impact socket separately for the fastener opening.
The design uses the set as chrome-molybdenum steel and fully impact rated. It does not give separate measured torque ceilings for the reducer and increaser.
The pair contains two opposite square-drive conversions, rather than identical copies. Check the 1/2-to-3/4 and 3/4-to-1/2 markings when selecting from the pair.
A spring-loaded ball retains a matched drive recess. Verify actual engagement for each socket; no all-socket retention test or compatibility chart is specified.
Set quantity does not establish higher load capacity. Choose one appropriate adapter and follow the limits of that tool/socket assembly; no added torque multiplier is documented.
Both adapters have manganese phosphate corrosion protection. No separate coating performance or exposure rating is specified for either member.
No required pin diameter or ring dimensions are specified for the retention provisions. Confirm hardware fit separately rather than copying a pin from another tool.
LX-401 is the one-way 1/2-to-3/4 increaser. LX-403 adds the separate 3/4-to-1/2 reducer, giving two adapters for workshops that need both directions.
No. The listed base set contains one increaser and one reducer, with opposite female/male sizes. Its two-piece count refers to those different adapters.
The set contains the two adapters; pin-and-ring supply is not confirmed. Check included retention hardware before planning an application that requires it.
The set includes a convenient tray. A hinged transport case or impact wrench is not confirmed as included.
Check the female drive size, retention and tool documentation for whichever member you use. Drive size alone does not confirm anvil fit or permissible load.
Lifetime coverage when you register online within 90 days of purchase; 12 months standard without registration. Commercial use is covered for 12 months and cannot be extended; industrial use is not covered. Coverage is for defects in material and workmanship, excluding normal wear and tear, misuse, modification and non-original parts.
Check the marked drive sizes, complete seating and retention at both ends. Verify that all components suit the chosen tool and job.
Stop using the damaged adapter and contact Lexivon for assessment. No approved home repair is specified.
Stop and check that the socket drive matches and seats correctly. If the retention feature is damaged or still does not engage, contact Lexivon before continuing.
No. Check drive size, retention design and condition before applying force. A generic quick-fit claim does not verify an incompatible or damaged connection.
No. Warranty covers defects in material and workmanship and excludes normal wear and tear, misuse, modification and non-original parts. Lexivon decides the resolution after assessment.
No. Industrial use is excluded. Commercial use is covered for 12 months and cannot be extended, including heavy-duty applications.
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