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Hex Keys — 3908 series specs & sizes

An extra-long L-shaped hex key with a ball point on the long arm for better reach and angled access. Made from chrome-molybdenum s Sizes, lengths and weights in American units.

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Written by David Crosbie

An extra-long L-shaped hex key with a ball point on the long arm for better reach and angled access. Made from chrome-molybdenum steel.

mm · CrMo

Features

  • 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

Part no.

Size

Length

Weight

Docs

Availability

1.5 mm

3.5" (90 mm)

0.1 oz (2 g)

In store

2 mm

3.9" (100 mm)

0.1 oz (3 g)

In store

2.5 mm

4.4" (112 mm)

0.2 oz (6 g)

In store

3 mm

5.0" (126 mm)

0.3 oz (9 g)

In store

4 mm

5.5" (140 mm)

0.6 oz (18 g)

In store

5 mm

6.3" (160 mm)

1.1 oz (32 g)

In store

6 mm

7.1" (180 mm)

1.8 oz (52 g)

In store

8 mm

7.9" (200 mm)

3.7 oz (104 g)

In store

10 mm

8.8" (224 mm)

6.4 oz (182 g)

In store

Dimensions shown in inches with millimeters in parentheses — figures come straight from the official Teng Tools product data. Docs links open the official Teng Tools PDF data sheet, user manual or parts diagram for that part number.

Availability & help

Items marked “In store” are stocked at tengtoolsusa.com and ship from our Fort Worth, Texas warehouse. For anything marked “Ask us”, contact us — we can usually get it. Every Teng Tools hand tool carries our lifetime warranty against manufacturing defects.

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