12 pc 1/2″ Drive 12-Point Metric Flank Drive® Deep Impact Socket Set (15–25 and 27 mm)

312SIMDM — 12 pc 1/2" Drive 12-Point Metric Flank Drive® Deep Impact Socket Set (15–25 and 27 mm). Build a socket selection around the fasteners used in the workshop.

Applications and industries

Automotive repair, fleet maintenance and machinery service teams are potential users when the set coverage matches their equipment.

• Check the included sizes, drive sizes and point profiles.
• Then compare shallow, deep and universal components with the access required by the job.

These industry examples are selection guidance, not additional manufacturer approvals.

Features of 312SIMDM

• Includes 15–25 and 27 mm sockets in a storage tray
• Flank Drive® wrenching system delivers up to 20% more turning power without slipping or rounding while exceeding ANSI® performance standards
• The hex depth of our impact sockets will start to thread the nut onto the stud; competitive sockets with a deeper hex require the user to start the nut by hand
• Snap-on® impact sockets are heat treated to optimize impact service life with a lower hardness than hand sockets and are able to withstand repeated cycling loads of impact wrenches
• Manufactured from the highest quality domestic steel, providing optimum strength, durability, and longer life
• Square drive side hole works with ball- or pin-type retention
• Industrial finish helps protect against corrosion

Specifications and fit checks

Piece count alone does not define useful coverage. Compare the actual sizes and accessories, and check whether the sockets permit impact use.

Similar models to 312SIMDM

The table compares official catalogue details. These are selection options, not confirmed replacements. Check the differences against the task and existing equipment.

312SIMDM selection checklist

For 312SIMDM, 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 312SIMDM 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 12 pc 1/2" Drive 12-Point Metric Flank Drive® Deep Impact Socket Set (15–25 and 27 mm). Its catalogue grouping is Flank Drive® Impact Sockets / Deep, mm (1/2"). 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.

The current record does not provide a complete dimensional specification table for this item. The model description and any listed features remain useful references, but they do not justify filling in missing dimensions, capacities or approvals. If fit depends on a measurement or a particular parent tool, identify that requirement in the inquiry and obtain confirmation before choosing the item.

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 312SIMM and 310SIMMADDON. 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 312SIMDM 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.