Teng Tools SAE Hex Key 1/16-5/8 in - Individual AF Allen Wrench, Chrome Vanadium, Black Phosphate Finish, ASME B18.3 - Choose Your Size
Hex Keys · 310103
SAE Hex Key 1/16-5/8 in
Individual AF Allen Wrench, Chrome Vanadium, Black Phosphate Finish, ASME B18.3 · Choose Your Size
- Fast US dispatch from our Fort Worth, Texas warehouse
- Genuine Teng Tools — professional-grade, designed in Sweden
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- Backed by guarantee — built to last a working lifetime
Why this one
15 inch sizes
Sold individually in 15 AF sizes from 1/16 in to 5/8 in, so you can choose the hex keys your work needs.
Ground key ends
Ground ends give a better finish and a precise fit in the screw socket.
Chrome vanadium, black finish
Manufactured in chrome vanadium steel with a black phosphate finish.
Marked and made to ASME B18.3
Individually marked for size so the right key is easy to find, and made according to ASME B18.3.
Read the full description
Teng Tools SAE (AF) hex keys, sold individually in 15 sizes from 1/16 in to 5/8 in. Choose your size above.
- Individually marked for size
- Ground key ends for a better finish and precise fit
- Manufactured in chrome vanadium steel with a black phosphate finish
- Designed and manufactured according to ASME B18.3
Specifications
| Type | Hex key, AF (inch) |
| Material | Chrome vanadium steel |
| Finish | Black phosphate |
| Standard | ASME B18.3 |
Sizes
| Size | Part number | Arm lengths |
| 1/16 in | 310102 | 14 x 44 mm (0.5 x 1.7 in) |
| 5/64 in | 3101025 | 15 x 48 mm (0.5 x 1.8 in) |
| 3/32 in | 310103 | 17 x 51 mm (0.6 x 2.0 in) |
| 7/64 in | 3101035 | 18 x 54 mm (0.7 x 2.1 in) |
| 1/8 in | 310104 | 19 x 57 mm (0.7 x 2.2 in) |
| 9/64 in | 3101045 | 20 x 64 mm (0.7 x 2.5 in) |
| 5/32 in | 310105 | 21 x 64 mm (0.8 x 2.5 in) |
| 3/16 in | 310106 | 24 x 70 mm (0.9 x 2.7 in) |
| 7/32 in | 310107 | 26 x 76 mm (1.0 x 2.9 in) |
| 1/4 in | 310108 | 28 x 83 mm (1.1 x 3.2 in) |
| 5/16 in | 310110 | 32 x 95 mm (1.2 x 3.7 in) |
| 3/8 in | 310112 | 35 x 108 mm (1.3 x 4.2 in) |
| 7/16 in | 310114 | 38 x 121 mm (1.4 x 4.7 in) |
| 1/2 in | 310116 | 41 x 133 mm (1.6 x 5.2 in) |
| 5/8 in | 310120 | 48 x 159 mm (1.8 x 6.2 in) |
Specifications
| Type | Hex & TX Keys |
|---|---|
| Category | Hex Keys |
| Part number | 310103 |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.