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Home >> Sockets and Driving Accessories > 3/8" Square Drive
Mekaster Tools Limited
3/8" (10 mm) Square Drive Industrial Tools IMPACT
Mekaster Tools Limited

Mekaster Tools LtdHeavy Duty Single Hex Socket STANDARD

Mekaster Tools LimitedMetric
Part No SW d1 d2 t1 (min) L
GIM-107 GMM-107 7 12.7 19 8 30
GIM-108 GMM -108 8 13.5 19 9 30
GIM-109 GMM -109 9 14.6 19 9 30
GIM-110 GMM -110 10 16.4 19 9 30
GIM-111 GMM -111 11 16.9 20 9 30
GIM-112 GMM -112 12 19.0 20 12 30
GIM-113 GMM -113 13 20.0 20 12 30
GIM-114 GMM -114 14 21.0 22 12 30
GIM-115 GMM -115 15 22.8 22 14 30
GIM-116 GMM -116 16 23.9 22 14 30
GIM-117 GMM -117 17 24.8 22 14 30
GIM-118 GMM -118 18 26.6 22 14 30
GIM-119 GMM -119 19 26.6 22 14 30


Mekaster Tools LimitedAmerican
Part No SW d1 d2 t1 (min) L
GI-100-1 GM-100-1 5/16” 13.5 19 8 30
GI-101 GM-101 3/8” 14.6 19 9 30
GI-103 GM-103 7/16” 16/9 19 12 30
GI-104 GM-104 1/2" 19.0 20 12 30
GI-105 GM-105 9/16” 21.0 22 14 30
GI-107 GM-107 5/8” 22.8 22 14 30
GI-108 GM-108 11/16” 24.8 22 14 30
GI-109 GM-109 3/4" 26.6 22 14 30

Locking Ring & Pin (Not included with socket)
MI-11R Locking Ring for d 2< 20 mm
MI-11P Locking Pin for d 2< 20 mm
MI-13R Locking Ring for other sizes
MI-13P Locking Pin for other sizes.
Note : Thin wall sockets can also be supplied against special orders.


Mekaster Tools LtdHeavy Duty Single Hex Socket DEEP

Mekaster Tools LimitedMetric
Part No SW d1 d2 t1 (min) t2 L
L O
GIM-107D GMM-107D 7 12.7 19 8 42 54
GIM-108D GMM –108D 8 13.5 19 9 42 54
GIM-109D GMM –109D 9 14.6 19 9 42 54
GIM-110D GMM –110D 10 16.4 19 9 42 54
GIM-111D GMM –111D 11 16.9 20 9 42 54
GIM-112D GMM –112D 12 19.0 20 12 42 54
GIM-113D GMM –113D 13 20.0 20 12 42 54
GIM-114D GMM –114D 14 21.0 22 12 42 54
GIM-115D GMM –115D 15 22.8 22 14 42 54
GIM-116D GMM –116D 16 23.9 22 14 42 54
GIM-117D GMM –117D 17 24.8 22 14 42 54
GIM-118D GMM –118D 18 26.6 22 14 42 54
GIM-119D GMM –119D 19 26.6 22 14 42 54


Mekaster Tools LimitedAmerican
Part No SW d1 d2 t1 (min) t2 L
L O
GI-100-1D GM-100-1D 5/16” 13.5 19 8 42 54
GI-101D GM-101D 3/8” 14.6 19 9 42 54
GI-103D GM-103D 7/16” 16.9 19 9 42 54
GI-104D GM-104D 1/2" 19.0 20 12 42 54
GI-105D GM-105D 9/16” 21.0 22 12 42 54
GI-107D GM-107D 5/8” 22.8 22 14 42 54
GI-108D GM-108D 11/16” 24.8 22 14 42 54
GI-109D GM-109D 3/4" 26.6 22 14 42 54

Locking Ring & Pin (Not included with socket)
MI-11R Locking Ring for d2<20 mm
MI-11P Locking Pin for d2<20 mm
MI-13R Locking Ring for other sizes.
MI-13P Locking Pin for other sizes.
Note : Thin wall sockets can also be supplied against special order.


Mekaster Tools LtdHex Adapter (Integral)

Mekaster Tools LimitedMetric
Part No. S d2 l1 L
GHIM-103 3 20 20 44
GHIM-104 4 20 20 44
GHIM-105 5 20 20 44
GHIM-106 6 20 20 44
GHIM-108 8 20 20 44
GHIM-110 10 22 25 50


Mekaster Tools LimitedAmerican
Part No. SW d2 l1 L
GHI-100-D 1/8” 20 20 44
GHI-100-C 5/32” 20 20 44
GHI-100-B 3/16” 20 20 44
GHI-100-A 7/32” 20 20 44
GHI-100 1/4" 20 20 44
GHI-100-1 5/16” 20 20 44
GHI-101 3/8” 22 25 50


Mekaster Tools LtdStud Tighteners

Mekaster Tools LimitedMetric
Part No. dxp d1 d2 t L
STM-106 M6x1.00 11.4 19 10 35
STM-107 M7x1.00 12.7 19 10 35
STM-108 M8x1.25 13.9 19 12 37
STM-108/1.00 M8x1.00 13.9 19 12 37
STM-110 M10x1.5 16.4 19 14 40
STM-110/1.25 M10x1.25 16.4 19 14 40

1. Extra Deep Stud Tightener for stepped studs & special pitches also available against special order.
2. Stud Tightener to suit UNC/UNF/BSF/BSW threads also available against special order.


Mekaster Tools LtdSingle Hex Swivel Socket

Mekaster Tools LimitedMetric
Part No. SW d1 d2 d3 t1 t2 L
MSIM-107 7 12.7 19 24 8 17 58
MSIM-108 8 13.5 19 24 9 17 58
MSIM-110 10 16.4 19 24 9 17 58
MSIM-111 11 16.9 20 24 9 17 58
MSIM-112 12 19 20 24 12 17 58
MSIM-113 13 20 20 24 12 19 62
MSIM-114 14 21 22 24 12 19 62
MSIM-115 15 22.8 22 24 14 19 62
MSIM-116 16 23.9 22 24 14 19 62
MSIM-117 17 24.8 22 26* 14 19 62
MSIM-118 18 26.6 22 26* 14 22 65
MSIM-119 19 26.6 22 26* 14 22 65

* With reinforcement ring fitted.
1. Max. Swivel Angle 300
2. SAE size can be supplied against orders
3. Locking Ring & Pin (Not included with sockets)
MI-11R Locking Ring for d 2< 20 mm
MI-11P Locking Pin for d 2<20 mm
MI-13R Locking Ring for other sizes
MI-13P Locking Pin for other sizes


Mekaster Tools LtdSingle Hex Extension Socket

Mekaster Tools LimitedMetric
100 150 200 d1 d2 d3 t1 t2
SW Part No. Part NO. Part No.          
7 GESM-107 GESM-107L GESM-107X 12.7 19 8 8 12
8 GESM-108 GESM-108L GESM-108X 13.5 19 8 9 14
10 GESM-110 GESM-110L GESM-110X 16.4 19 10 9 15
11 GESM-111 GESM-111L GESM-111X 16.9 20 11 9 15
12 GESM-112 GESM-112L GESM-112X 19 20 12 12 17
13 GESM-113 GESM-113L GESM-113X 20 20 12 12 17
14 GESM-114 GESM-114L GESM-114X 21 22 12 12 20
16 GESM-116 GESM-116L GESM-116X 23.9 22 14 14 20
17 GESM-117 GESM-117L GESM-117X 24.8 22 14 14 22

1. Locking Ring & Pin (Not Included with Sockets)
MI-11R Locking Ring for d 2 < 20 mm
MI-11P Locking Pin for d 2 < 20 mm
MI-13R Locking Pin for other sizes
MI-13P Locking Pin for other sizes.
2. SAE sizes can be supplied against order.


Mekaster Tools LtdSingle Hex Swivel Extension Socket

Mekaster Tools LimitedMetric
100 150 200 d1 d2 d3 d4 t1 min
SW Part No. Part NO. Part No.
7 MSESM-107 MSESM-107L MSESM-107X 12.7 19 24 11.7 8
8 MSESM -108 MSESM –108L :P> MSESM –108X :P> 13.5 19 24 11.7 9
10 MSESM -110 MSESM –110L :P> MSESM –110X :P> 16.4 19 24 11.7 9
11 MSESM -111 MSESM –111L :P> MSESM –111X :P> 16.9 20 24 11.7 9
12 MSESM -112 MSESM –112L :P> MSESM –112X :P> 19.0 20 24 11.7 12
13 MSESM -113 MSESM –113L :P> MSESM –113X :P> 20.0 20 24 11.7 12
14 MSESM -114 MSESM –114L :P> MSESM –114X :P> 21.0 22 24 11.7 12
16 MSESM -116 MSESM –116L :P> MSESM –116X :P> 23.9 22 24 11.7 14
17 MSESM -117 MSESM –117L :P> MSESM –117X :P> 24.8 22 26* 11.7 14

* With reinforcement ring fitted.
1. SAE sizes can be supplied against orders.
MI-11R Locking Ring for d2< 20 mm
MI-13R Locking Ring for Other sizes
2. Max. Swivel Angle 300
3. Locking Ring & Pin (Not included with sockets)
MI-11P Locking Pin for d2< 20 mm
MI-13P Locking Pin for other sizes.


Mekaster Tools LtdSquare Drive Adaptor

Mekaster Tools LimitedMetric
Part No. n d2 L
GIA-1 1/4" 3/8” 14 27
GIA-2 3/8” 1/4" 20 32
GIA-3 3/8” 1/2" 20 35
GIA-4 1/2" 3/8” 26 38
Add Postscript ‘B’ to Part No., if Locking Button required in Male Square Drive.



Mekaster Tools LtdExtension Bar

Mekaster Tools LimitedMetric
Part No. d1 d2 L
GB-175 12.6 20 75
GB-1150 12.6 20 150
GB-1300 12.6 20 300


Mekaster Tools LtdSwivel Joint

Mekaster Tools LimitedMetric
Part No. d L
MSIJ-10 24.0 53.0


Mekaster Tools LtdQuick Coupler

Mekaster Tools LimitedMetric
Part No. O
MQC-10 3/8” 1/4"
MQC-18 3/8” 5/16”


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News & Events
Mekaster Tools Limited
Mekaster and their Principal Aker Wirth, Germany participated in Bauma Conexpo Show held at Mumbai from February 8-11, 2011.
Mekaster Tools Limited
Mekaster Tools Limited
Mekaster Tools Limited
New Products
Battery Operated
Torque Wrench
LDA Series
Mekaster Tools Limited
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About CompanyMekaster Tools Limited
Mekaster has been pioneer in introduction of heavy-duty industrial tools in India since 1970s.
Mekaster Tools Limited