Instructions / User Guide
SR-2 User Guide
Contents
- Important Safety Information
- Tool Care and Storage
- Tool Kit Overview
- SR-2 Multi-Function Handle Overview
- Attaching and Removing Accessory’s
- Proper Use of Accessories
- Using the 3/8 Square Adapter
- Storing the 3/8 Square Adapter
- 1/4” Hex Bit Extension
- Hex Bit Adapters
- Square Drive Adapters
- Socket Extension
Important Safety Information
WARNING Read all safety warnings and instructions.
Failure to follow the warnings and instructions could result in injury or damage to the components.
- Warnings, cautions, and instructions cannot cover all possible situations that may occur. It must be understood by the operator that common sense and caution are factors that cannot be built into this product, but must be supplied by the user.
- Only use as intended. Do not use to pry. Never extend a wrench handle with a pipe, tube, or “cheater bar” for extra leverage. This overloads the tool and can cause sudden breakage.
- Use only sockets and bits with the correct drive.
- Over torqued axle nuts on new bike models is common. It is recommended to check the torque on all relevant fasteners and set them at the proper torque prior to embarking.
- Exposure to corrosive enviroments or storing the tools in damp or wet conditions will lead to corrosion and possible tool failure.
Tool Care and Storage
Cleaning
- Wipe after use: Remove dust, grease, and debris with a dry or damp rag after each use.
- Wash when needed: Use mild soap and warm water for stubborn dirt. Avoid harsh chemical cleaners that can ruin surface finishes.
- Dry completely: Dry all metal parts thoroughly with a clean cloth to stop moisture from causing rust.
Rust Prevention and Storage
- Apply light oil: Rub a thin layer of machine oil, engine oil (like 5W-30), or dry lube over metal components using a rag or spray, then wipe off the excess.
- Store properly: Keep tools in a cool, dry location, away from moisture. If the storage bag has been exposed to moisture, or has gotten wet, immediately lay the storage bag open to fully dry and remove and dry all the tools. Ensure the storage bag is fully dry before re-packing.
Caution: Carrying tools in a pannier, tail bag, or tank bag exposes them to vibration and impact, especially during off-road riding. Scratches, surface marring, and surface finish wear may result. To minimize damage, pack tools securely with other items to limit movement.
Tool Kit Overview

- SR-2 Multi-Function Handle
- Axle Nut Adapters
- 3/8 Square Drive Extension
- 1/4 Hex Bit Extension
- 1/4” Hex Bit Set & Adapter
- 5/16” Hex Bit Set & Adapter
- Socket Set
- Thin Wrench Set
- Saw Accessory
- Hammer Accessory
- Groove Joint Pliers
- 10” Long tire spoons
SR-2 Multi-Function Handle Overview

- 3/8” Square Ratchet Drive
- 3/8” Male to Male Square Drive Adapter
- Multi-function Accessory Latch Release
Attaching and Removing Accessory’s

Proper Use of Accessories
The SR-1 Handle was designed to be low profile to minimize its thickness. The design provides maximum strength when used in the proper orientation.
Do not use the SR-1 to pry in the direction illustrated. This will damage the handle.

Using the 3/8 Square Adapter
The 3/8” square adapter can be used to attach any 3/8” drive socket.
To reverse the direction of torque insert the adapter into the opposite side.

Storing the 3/8 Square Adapter
When returning the 3/8” square adpater to the SR-2 handle, ensure the detents of the 3/8” square adapter are facing the inside surfaces of the handle. The detents will click into place, retaining the 3/8” square adapter.

1/4” Hex Bit Extension
The Hex Bit Extension can be used to attach any of the provided 1/4” hex bits, including the 1/4 square drive sockets.
Warning! The Hex Bit Adapter should only be used for low torque applications. For High torque applications use the 3/8 square drive adapter with the provided bit adapter.

Hex Bit Adapters
The Hex Bit Adapters can be used to attach any of the provided 1/4” and 5/16” hex bits, including the 1/4 square drive sockets
The Hex Bit Adapters should be used for high torque applications.

Square Drive Adapters
Adapters with a 3/8” square drive attachment can be used with the 19mm flat wrench for addtional functionalitly.

Socket Extension
The Socket Extension and a large socket can be used on recessed axle nuts with limited access.

Resources
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About Obsidian
Obsidian Engineering of Utah was created by a small group of adventure riders and chopper builders who happen to love engineering—the kind of engineering where you notice something long overdue for change or in dire need of improvement, then engineer ways to make it far better.
When those ideas work, we believe the world deserves to know it.
We won’t claim that our products will change the world, but they may change yours.
We figure this—if you find yourself in a bad situation and, as a result of an Obsidian product, you’re able to turn that catastrophe into an epic story, we have done our job well.
So yeah, that’s it in a nutshell. That’s our “About Us” page.
So, go. Avoid the straight lines. Find adventure. Obsidian will be with you, and you’ll be way better prepared to find what’s out there.