Applications, specifications and model comparison
SOSRR22 — 11/16" SAE, #22 Spline, Flank Drive® 15° Offet Reversible Ratcheting Combination Wrench (Chrome). Engage fasteners through a matching socket and drive arrangement.
Applications and industries
The manufacturer lists these application details:
- Primarily aviation where spline fasteners are frequently more prevalent
Automotive repair, equipment service and industrial maintenance are potential users when the fastener and drive fit.
- Match the fastener size, point profile and measurement system.
- Then check socket depth, handle or head interface, and available clearance before choosing the drive tool.
These industry examples are selection guidance, not additional manufacturer approvals.
Features of SOSRR22
- Patented ratcheting mechanism utilizes Snap-on® Dual 80® Technology, combining dual pawls with a thin-walled, box-end design for smooth operation and more torque transfer in less lateral space
- Flank Drive® gear features an 80-tooth profile and is cold formed from the same steel as Snap-on® sockets, delivering up to 40% more cycle life and strength equivalent to traditional combination wrenches
- Flank Drive® Plus wrenching profile on one end, “bites” into the fastener, preventing slipping and rounding of the fasteners, while providing up to 62% more turning power and strength
- Manufactured from highest quality domestic steel, precision forged, heat-treated and finished in nickel-chrome for optimum strength and durability
- Longer length, wrench handle is sized for optimum comfort and balance, providing increased leverage, especially in tight space
- Handle is offset 15° from box-end for maximum knuckle clearance and increased access in any tight space
Specifications and fit checks
- Dimension E, Length, inches: 10-7/8
- Dimension B, Open End Outside Diameter, inches: 1-3/8
- Dimension C, Ratcheting Box Head Depth, inches: 13/32
- Dimension D, Open End Head Depth, inches: 5/16
- Finish: Chrome
- Size, Spline (SAE): #22 (11/16")
A similar nominal size in another system is not a substitute. Confirm impact suitability and mating-head compatibility separately from drive size.
Similar models to SOSRR22
The table compares official catalogue details. These are selection options, not confirmed replacements. Check the differences against the task and existing equipment.
Model comparison using official catalogue data
| Compare |
SOSRR22 |
SOSRR20 View product |
SOSRR24 View product |
| Official model description |
SOSRR22 — 11/16" SAE, #22 Spline, Flank Drive® 15° Offet Reversible Ratcheting Combination Wrench (Chrome) |
SOSRR20 — 5/8" SAE, #20 Spline, Flank Drive® 15° Offet Reversible Ratcheting Combination Wrench (Chrome) |
SOSRR24 — 3/4" SAE, #24 Spline, Flank Drive® 15° Offet Reversible Ratcheting Combination Wrench (Chrome) |
| Dimension E, Length, inches |
10-7/8 |
10-9/32 |
12 |
| Dimension B, Open End Outside Diameter, inches |
1-3/8 |
1-5/16 |
1-9/16 |
| Dimension C, Ratcheting Box Head Depth, inches |
13/32 |
3/8 |
7/16 |
| Dimension D, Open End Head Depth, inches |
5/16 |
9/32 |
11/32 |
SOSRR22 selection checklist
For SOSRR22, verify the required task, working range, interface dimensions and package contents against the official catalogue details. This final check helps prevent ordering a visually similar model with a different fit or capability.
Choosing SOSRR22 for the task
Choose a socket around the fastener profile, its exact size and the depth needed to engage it. A shallow, deep or universal arrangement changes the working space around the connection. However, extra reach is useful only when the tool can enter the recess and the handle can move. For a ratchet, examine the drive interface and the head dimensions as well as the handle length. A compact head and a long handle solve different access problems.
When planning a set, write down the required sizes before comparing the number of pieces. Count the useful accessories separately from the sockets. For a replacement tool, check the existing drive system and the type of service. Do not assume that an impact wrench can use every socket with a matching square drive. Also, a universal component is an access option, not permission to operate at any angle or load. Confirm the complete setup in the tool instructions.
Planning the workshop application
Define the intended job in practical terms before comparing options. Record the equipment or component involved, the operation to perform and the access available around it. Include the current tool or accessory if this purchase replaces an existing item. That context helps distinguish a size change from a different product function. It also makes the application and industry examples above easier to assess against the actual work.
Understanding the catalogue record
The official listing identifies this model as 11/16" SAE, #22 Spline, Flank Drive® 15° Offet Reversible Ratcheting Combination Wrench (Chrome). Its catalogue grouping is Flank Drive® Ratcheting Combination / Reversible Ratcheting Combination/Spline, inches. Use that description to identify the product format, then read the individual specifications for the details that matter to the job. A category describes where the product sits in the range; it is not an additional compatibility approval.
Further catalogue details
- Dimension A, Ratcheting Box Outside Diameter, inches: 1-3/16
For this record, the available specification labels include Dimension E, Length, inches; Dimension B, Open End Outside Diameter, inches; Dimension C, Ratcheting Box Head Depth, inches. Read each value together with its label and unit. A drive size, external dimension and working range describe different things, even if their numbers look similar. If the job requires a value that is not listed, request that detail before ordering instead of estimating it from the photograph.
The catalogue country-of-origin field is USA. This field concerns the listed product origin; it does not identify local inventory, delivery time or the warranty terms of a Vietnam quotation. Confirm those commercial details separately.
Comparing options before ordering
The comparison above names SOSRR20 and SOSRR24. Review the displayed differences against the requirement for this job. Begin with function and compatibility, then compare access, configuration and included components. If the names differ by size, drive, colour or kit format, identify which difference matters before making a choice. Similar models are not automatic replacements, and a larger or more expensive option is not necessarily the better match.
Purchase questions and receiving checks
What should the order include?
Ask for a line-item description of the supplied configuration. For a set or kit, confirm the contents; for a component, confirm the quantity and the matching parent model where relevant. If photographs show a larger assembly or several items, do not assume all of them form part of this SKU. Keep any essential accessories and documents explicit in the quotation so that receiving checks can follow the same requirements.
Receiving, care and record keeping
On receipt, compare the item and its packaging with the ordered model, quantity and configuration. Check the supplied components and any requested documentation. Keep the product identification visible in the workshop’s inventory record. If the delivered item differs from the confirmed order, resolve that difference before assigning it to the planned job. This is especially useful when a range contains visually similar sizes or accessories for different parent tools.
For continued use, follow the manufacturer’s instructions for inspection, cleaning, storage and maintenance. Do not assume that a cleaning chemical, lubricant or maintenance method used on another tool is suitable here. Keep damaged or uncertain equipment out of the planned task until its condition is assessed. Record any replacement parts by model so future orders use the confirmed reference rather than a visual guess.
Ordering in Vietnam
Send Techmaster Vietnam the model number SOSRR22 and details of the task or existing equipment. Include any required sizes, connections and accessories.
Before ordering, confirm the quotation, lead time, package contents and applicable warranty terms. The official catalogue is the technical reference; it does not establish local stock or a Vietnam selling price.
For the source record, see the official Snap-on product listing. You can also browse the Vietnam product catalogue for related tools.