AMM 3/8-Inch Drive Extra Long Hex Bit Socket Set 19 Piece
- Item Length: 4.3 inches
- Material Type: S2 Alloy Steel
- Finish Types: Polished
- Unit Count: 19
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 19 piece hex wrench set with strong monthly demand, reasonable for general use though the individual key sizes are not listed.
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ASIN: B09J4MM6T9Model: YMX020Category: Wrenches
Overview
The AMM Hex Allen Wrench set includes 19 pieces with a stated length of 4.3 inches, sold under the AMM tools brand.
A 19 piece count on a hex wrench set typically spans both metric and SAE sizes plus a couple of specialty or ball end keys, though this listing does not break down the individual sizes included. The 4.3 inch length figure most likely describes the longest wrench in the set rather than every piece, since hex key sets are normally graduated in size.
- 19 piece hex wrench set
- 4.3 inch longest key length
- AMM brand
Who it's for
Suits anyone who needs a multi piece hex wrench set and does not require a specific size breakdown before buying. Less suited to someone assembling furniture or equipment that calls out an exact size list, since the individual sizes aren't itemized here.
Pros and cons
- 19 piece set covers a broad range of tasks
- 600 purchases a month shows steady demand
- Individual hex sizes are not itemized in the listing
Performance notes
With 19 pieces, the set likely covers a broad range of hex sizes for general assembly and repair, though the 4.3 inch figure appears to describe only the largest key rather than a fixed length across the set.
Specifications
| Brand | AMM |
|---|---|
| Model | YMX020 |
| Dimensions & fit | |
| Item Length | 4.3 incheslower than 75% of 371 wrenches |
| Construction & materials | |
| Material Type | S2 Alloy Steel |
| Finish Types | Polished |
| Compatibility & installation | |
| Bit Compatibilities | 3/8 inch |
| Included components | |
| Unit Count | 19 |
| Number Of Pieces | 19 |
| Other details | |
| Item Type Name | 19-Piece Hex Socket Set |
| Set Name | AMM 3/8 Inch Drive Extra Long Allen Socket Set (19-Piece) |
| Drive System | Hex |
| Drive Bit Shank Style | Hex |
| Bit Set Composition | Bit Set |
| Drive Bit Application | automotive, general maintenance |
| Drive End Style | Hex Shank |
| Bit Tip Configuration | Standard Tip |
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Frequently asked questions
How many pieces are in the AMM hex wrench set?
19 pieces.
What is the longest wrench length in the set?
4.3 inches, per the listing.
Does the set include metric and SAE sizes?
The listing does not break down individual sizes, so check the product page for the full size list.