My Cart

Close

FREE SHIPPING ON ALL ORDERS OVER $25

Standard To Metric Wrench Conversion Chart

ONE COMPLETE CHART

We all have a mix of wrenches in our tool boxes. Some of us have a lot of SAE, others have a full range of metric and most of us have a balanced mix of both.

Whatever your setup, our wrench conversion chart will tell you the best fitting standard or metric wrench to use for any given bolt.

STANDARD / METRIC WRENCH CONVERSION CHART

BOLT DIAMETER STANDARD METRIC

1/8"

5/16"

8mm

3/16"

3/8"

10mm

1/4"

7/16"

11mm

5/16"

1/2"

13mm

3/8"

9/16"

14mm

7/16"

5/8"

16mm

1/2"

3/4"

19mm

9/16"

13/16"

21mm

-

7/8"

22mm

5/8"

15/16"

24mm

-

1"

25mm

3/4"

1-1/8"

29mm

-

1-1/4"

32mm

7/8"

1-5/16"

34mm

-

1-3/8"

35mm

1"

1-1/2"

38mm

-

1-5/8"

41mm

1-1/8"

1-11/16"

43mm

-

1-3/4"

45mm

1-1/4"

1-7/8"

48mm

1-3/8"

2"

51mm

1-1/2"

2-1/4"

57mm

1-5/8"

2-1/2"

64mm

1-3/4"

2-5/8"

67mm

-

2-3/4"

70mm

1-7/8"

2-15/16"

75mm

-

3"

76mm

2"

3-1/8"

80mm

-

3-1/4"

83mm

2-1/4"

3-1/2"

89mm

-

3-3/4"

95mm

2-1/2"

3-7/8"

99mm

-

4"

102mm

2-3/4"

4-1/4"

108mm

-

4-1/2"

114mm

3"

4-5/8"

118mm

3-1/4"

5"

127mm

3-1/2"

5-3/8"

137mm

-

5-1/2"

140mm

3-3/4"

5-3/4"

146mm

-

6"

152mm

-

6-1/2"

165mm

-

7"

178mm

3/8" DRIVE ELECTRIC RATCHET SET

Maximum high torque power of 33 ft-lbs with button for superior variable fastening of 230 RPM +/-10% for a wide range of fastening applications.

Forward and reverse lever for tightening and loosening with low profile angled head, LED light for easy use in confined spaces and durable metal and plastic construction with soft grip for increased comfort.

Sold out

FOLLOW US ON SOCIAL

SIGNUP FOR DISCOUNTS & GIVEAWAYS

We all have a mix of wrenches in our tool boxes. Some of us have a lot of SAE, others have a full range of metric and most of us have a balanced mix of both.

Whatever your setup, our wrench conversion chart will tell you the best fitting standard or metric wrench to use for any given bolt.

BOLT DIAMETER STANDARD METRIC

1/8"

5/16"

8mm

3/16"

3/8"

10mm

1/4"

7/16"

11mm

5/16"

1/2"

13mm

3/8"

9/16"

14mm

7/16"

5/8"

16mm

1/2"

3/4"

19mm

9/16"

13/16"

21mm

-

7/8"

22mm

5/8"

15/16"

24mm

-

1"

25mm

3/4"

1-1/8"

29mm

-

1-1/4"

32mm

7/8"

1-5/16"

34mm

-

1-3/8"

35mm

1"

1-1/2"

38mm

-

1-5/8"

41mm

1-1/8"

1-11/16"

43mm

-

1-3/4"

45mm

1-1/4"

1-7/8"

48mm

1-3/8"

2"

51mm

1-1/2"

2-1/4"

57mm

1-5/8"

2-1/2"

64mm

1-3/4"

2-5/8"

67mm

-

2-3/4"

70mm

1-7/8"

2-15/16"

75mm

-

3"

76mm

2"

3-1/8"

80mm

-

3-1/4"

83mm

2-1/4"

3-1/2"

89mm

-

3-3/4"

95mm

2-1/2"

3-7/8"

99mm

-

4"

102mm

2-3/4"

4-1/4"

108mm

-

4-1/2"

114mm

3"

4-5/8"

118mm

3-1/4"

5"

127mm

3-1/2"

5-3/8"

137mm

-

5-1/2"

140mm

3-3/4"

5-3/4"

146mm

-

6"

152mm

-

6-1/2"

165mm

-

7"

178mm

3/8" DRIVE ELECTRIC RATCHET SET

Sold out

FOLLOW US ON SOCIAL

SIGNUP FOR DISCOUNTS & GIVEAWAYS

x