Extra Long Ball Point Hex Key Metric
Extra Long Ball Point Hex Key Metric
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These extra long ball point hex keys are manufactured in chrome molybdenum steel. The extended long arm with ball point gives access at angles up to 25° even in deep recesses, while the short regular hex arm is used when maximum torque is needed. Individually size-marked for easy identification.
- Manufactured in Chrome molybdenum steel for added strength
- Ball point end on the long key end giving access at angles of up to 25°
- Ideal for use in confined spaces
- Regular hex end on the short arm giving the ability to apply higher torque
- Individually marked for size for easier identification
Sizes & specifications
| Size | Part no. | Length | Weight |
|---|---|---|---|
| 1.5mm | 3908015BL | 3.5" (90 mm) | 0.1 oz (2 g) |
| 2.5mm | 3908025BL | 4.4" (112 mm) | 0.2 oz (6 g) |
| 2mm | 3908020BL | 3.9" (100 mm) | 0.1 oz (3 g) |
| 3mm | 390803BL | 5.0" (126 mm) | 0.3 oz (9 g) |
| 4mm | 390804BL | 5.5" (140 mm) | 0.6 oz (18 g) |
| 5mm | 390805BL | 6.3" (160 mm) | 1.1 oz (32 g) |
| 6mm | 390806BL | 7.1" (180 mm) | 1.8 oz (52 g) |
| 8mm | 390808BL | 7.9" (200 mm) | 3.7 oz (104 g) |
| 10mm | 390810BL | 8.8" (224 mm) | 6.4 oz (182 g) |
Lengths and weights in US units with metric in parentheses, straight from official Teng Tools data.
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Specifications
| Type | Hex & TX Keys |
|---|---|
| Category | Hex Keys |
| Measurement standard | Metric |
| Part number | 3908015BL |
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.
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Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
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