Martin Tool SMD1221 21mm Deep Metric Socket, 1/2" Drive, 12 Point MAIN
Martin Tool SMD1221 21mm Deep Metric Socket, 1/2" Drive, 12 Point MAIN
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Martin Tool SMD1221 21mm Deep Metric Socket, 1/2" Drive, 12 Point

Your Price: $13.08
Availability: IN-STOCK - Usually ships within 1 to 4 business days


Part Number: MRTSMD1221
  • 21mm 12-point deep socket
  • 1/2" square drive for ratchets and power tools
  • Extra depth for recessed fasteners
  • Chrome finish provides durability and corrosion protection
  • Made in the USA

Hand Socket Wrenches are drop forged from steel bar. These wrenches are available in drive sizes of ¼”, 3/8”, ½”, 3/4” and 1”. These sockets are available in 6 point and 12 point openings in fractional sizes. Metric sizes available through ½” drive. They are available in Chrome and Industrial Black finish. These are special purpose wrenches designed for use in a wide range of sizes and capacities. All have square drives, and drive size is a measure of capacity. As detachable socket wrenches provide an almost endless combination of handles, attachments and sockets, it is possible to assemble a proper tool for almost any type of service within the tool’s capacity.

Made in the USA

1/2" Square Drive 12 Point Deep – Metric

Part NumberOpeningTypeLengthDrive EndOpening EndMinimum DepthWeight Each (lb)Opening
SMD121010 mmI79.5 mm22.1 mm15.2 mm16.0 mm0.2210 mm
SMD121111 mmI79.5 mm22.1 mm18.3 mm17.0 mm0.2211 mm
SMD121212 mmI79.5 mm22.1 mm18.8 mm18.0 mm0.2212 mm
SMD121313 mmI79.5 mm22.1 mm19.3 mm20.1 mm0.2613 mm
SMD121414 mmI79.5 mm22.1 mm21.8 mm23.9 mm0.2614 mm
SMD121515 mmII79.5 mm21.8 mm26.9 mm0.2615 mm
SMD121616 mmII79.5 mm22.1 mm30.0 mm0.3216 mm
SMD121717 mmII79.5 mm24.4 mm31.0 mm0.3217 mm
SMD121818 mmII79.5 mm25.4 mm31.0 mm0.3318 mm
SMD121919 mmII79.5 mm26.9 mm33.0 mm0.3819 mm
SMD122020 mmII79.5 mm27.9 mm33.0 mm0.4120 mm
SMD122121 mmII79.5 mm28.4 mm33.0 mm0.4121 mm
SMD122222 mmII79.5 mm30.2 mm33.0 mm0.4622 mm
SMD122323 mmII79.5 mm31.0 mm33.0 mm0.5123 mm
SMD122424 mmII79.5 mm32.0 mm35.1 mm0.5724 mm
SMD122525 mmII79.5 mm33.3 mm35.1 mm0.725 mm
SMD122626 mmII79.5 mm34.0 mm35.1 mm0.7426 mm
SMD122727 mmII79.5 mm35.8 mm35.1 mm0.7827 mm
STM122727 mmIII44.5 mm28.0 mm35.5 mm16.0 mm0.327 mm
STM123030 mmIII47.5 mm28.5 mm40.0 mm16.5 mm0.430 mm
STM123232 mmIII49.0 mm28.5 mm42.0 mm19.0 mm0.4432 mm
STM123636 mmIII51.0 mm34.5 mm49.5 mm23.0 mm0.4636 mm

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