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Hex Keys — 3105 series specs & sizes

A standard L-shaped hex key for tightening and loosening hexagonal socket screws. Made from chrome vanadium steel. Sizes, lengths and weights in American units.

D
Written by David Crosbie

A standard L-shaped hex key for tightening and loosening hexagonal socket screws. Made from chrome vanadium steel.

mm · DIN · CrV

Features

  • Metric hexagon key wrench

  • Individually marked for size

  • Ground key ends for a better finish and accurate fit

  • Manufactured in chrome vanadium steel with a black phosphate finish

  • Designed and manufactured to DIN 2936

  • Professional metric hex key

  • Made from chrome vanadium steel

  • Corrosion-resistant black oxide finish

  • Long arm with ball end

  • Short arm with straight hex profile

Sizes & specifications

Part no.

Size

Length

Weight

Docs

Availability

0.7 mm

0.31" (8 mm)

0.0 oz (1 g)

In store

0.9 mm

0.39" (10 mm)

0.0 oz (1 g)

In store

1.3 mm

0.47" (12 mm)

0.0 oz (1 g)

In store

1.5 mm

0.55" (14 mm)

0.1 oz (4 g)

In store

1.5 mm

0.55" (14 mm)

0.0 oz (1 g)

In store

2 mm

0.63" (16 mm)

0.1 oz (2 g)

In store

2.5 mm

0.71" (18 mm)

0.1 oz (4 g)

In store

2.5 mm

0.71" (18 mm)

0.2 oz (5 g)

In store

2 mm

0.63" (16 mm)

0.1 oz (3 g)

In store

3 mm

0.79" (20 mm)

0.2 oz (5 g)

In store

3 mm

0.79" (20 mm)

0.2 oz (7 g)

In store

4 mm

0.98" (25 mm)

0.4 oz (10 g)

In store

4.5 mm

1.0" (26 mm)

0.5 oz (14 g)

In store

4 mm

0.98" (25 mm)

0.5 oz (14 g)

In store

5 mm

1.1" (28 mm)

0.6 oz (18 g)

In store

5.5 mm

1.2" (30 mm)

0.8 oz (23 g)

In store

5 mm

1.1" (28 mm)

0.8 oz (24 g)

In store

6 mm

3.5" (90 mm)

1.0 oz (29 g)

In store

6 mm

5.4" (137 mm)

1.4 oz (40 g)

In store

7 mm

3.7" (95 mm)

1.5 oz (42 g)

In store

7 mm

5.8" (147 mm)

2.1 oz (59 g)

In store

8 mm

3.9" (100 mm)

2.0 oz (58 g)

In store

8 mm

6.1" (156 mm)

2.9 oz (81 g)

In store

9 mm

4.2" (106 mm)

2.8 oz (78 g)

In store

10 mm

4.4" (112 mm)

3.6 oz (102 g)

In store

10 mm

6.7" (170 mm)

4.9 oz (140 g)

In store

11 mm

4.6" (118 mm)

4.7 oz (134 g)

In store

12 mm

4.9" (125 mm)

5.9 oz (167 g)

In store

12 mm

8.1" (207 mm)

8.8 oz (250 g)

In store

14 mm

5.5" (140 mm)

9.2 oz (260 g)

In store

14 mm

9.1" (230 mm)

13.6 oz (386 g)

In store

16 mm

6.0" (152 mm)

13.3 oz (377 g)

In store

17 mm

6.3" (160 mm)

15.5 oz (439 g)

In store

17 mm

9.8" (250 mm)

1.4 lb (0.62 kg)

In store

18 mm

6.7" (170 mm)

1.2 lb (0.53 kg)

In store

19 mm

7.1" (180 mm)

1.4 lb (0.62 kg)

In store

19 mm

11.0" (280 mm)

1.9 lb (0.87 kg)

In store

22 mm

7.9" (200 mm)

2.1 lb (0.93 kg)

In store

27 mm

9.8" (250 mm)

3.9 lb (1.75 kg)

In store

32 mm

12.4" (315 mm)

6.9 lb (3.11 kg)

In store

36 mm

14.0" (355 mm)

9.9 lb (4.48 kg)

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.

Also included in these sets

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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