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hex-key-sets
Hex Key Set HK-Inch (12-Piece SAE)
12-piece SAE inch hex key set (1/16-3/8 inch) in S2 tool steel. Black oxide finish with color-coded sleeves and wall-mountable rack.
Key Features
S2 shock-resistant tool steel (HRC 58-62)
Complete SAE range: 1/16 through 3/8 inch (12 keys)
Precision tolerance: ±0.001 inch across flats
Black oxide finish for workshop corrosion resistance
SAE red color-coded sleeves for instant ID
Wall-mountable rack with spring-loaded retainers
Chamfered ends for smooth fastener entry
Technical Specifications
| Specification | Value |
|---|---|
| model | HK-Inch |
| material | S2 Tool Steel |
| finish | Black Oxide with SAE Color-Coded Sleeves |
| sizes | 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 inch |
| pieceCount | 12-Piece Set |
| weight | 520g (with organizer) |
Applications
American and legacy machinery maintenanceHarley-Davidson and American motorcycle serviceVintage automobile restorationAgricultural and farm equipment repairGunsmithing and firearms maintenance
The HK-Inch Hex Key Set delivers the complete SAE fractional inch range (1/16 through 3/8 inch, 12 pieces) in premium S2 shock-resistant tool steel. Each key is precision-formed to exacting tolerances (±0.001 inch across the flats) ensuring a perfect fit in both new and slightly worn fasteners. The black oxide finish provides excellent corrosion resistance in workshop environments, while the SAE-standard color-coded sleeves (red for fractional inch) allow instant differentiation from metric sets. The included wall-mountable rack keeps the set organized and accessible, with each key held securely by a spring-loaded retainer that allows one-handed removal.
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