STANLEY STMT73439-8B 18 mm 3/8-inch Impact Socket in Mysore

Product Specifications

STANLEY lists this model for impact-tool applications. The 18 mm measurement is the fastener-head size; 3/8 inch refers to the tool's square-drive connection. They describe different parts of the fitment, and both must match your equipment.

Fitment and Workshop Use

This socket can be considered for automotive repair, workshop servicing and industrial maintenance when an 18 mm metric fastener must be driven with a suitable impact wrench. Before ordering, make sure the fastener is an 18 mm hex head or nut and the wrench uses a 3/8-inch square anvil. A 1/2-inch square drive will not accept the socket directly. A conventional hex-shank impact driver also needs an appropriate impact-rated interface rather than being treated as a direct-fit square anvil.
An impact-rated socket is selected for tools that deliver repeated impact loads. Do not substitute an ordinary hand-tool socket for impact work. Check clearance around the fastener, use a correctly rated tool and inspect the socket and anvil for visible damage before use. The product listing does not specify a model-specific maximum torque rating, so match the complete tool-and-fastener setup to the equipment manufacturer's instructions.

Ordering and Delivery in Mysore

Indus MegaMart's online product page shows the live item price and GST details. Enter your Mysore delivery pincode to check serviceability and the applicable delivery information before confirming your order. For workshop or maintenance procurement, select your required quantity and verify the item, delivery address and invoice details at checkout.
You can place an order even when available stock is shown as zero. Under Indus MegaMart's ordering policy, quantities covered by available stock have a delivery window of within 7 days; orders exceeding available stock, including zero-stock orders, have a 7–14-day delivery window. Confirm the current stock, pincode and order details at purchase. Mysore delivery is serviced through the online supply process; this description does not imply a dedicated local warehouse.

Frequently Asked Questions

1. Is STMT73439-8B an 18 mm socket or an 18 mm drive?

It is an 18 mm socket with a 3/8-inch square drive. The 18 mm size matches the fastener; the 3/8-inch drive matches the wrench's anvil.

2. Can I fit it directly onto a 1/2-inch impact wrench?

No. This model has a 3/8-inch square drive. A 1/2-inch tool requires a correctly selected impact-rated adapter or a suitable 1/2-inch-drive socket. Always follow the tool manufacturer's compatibility guidance.

3. Is the socket made from chrome-molybdenum steel?

Yes. STANLEY identifies chrome-molybdenum steel for the STMT73439-8B and designs the socket for impact-tool applications.

4. How many sockets are included?

STANLEY specifies one 3/8-inch-drive, 18 mm impact socket for this model. It is not presented as a multi-size socket set.

5. Can I order for delivery in Mysore if stock currently shows zero?

Yes. Indus MegaMart accepts orders and payment at zero available stock under its stated order policy. The 7–14-day delivery window applies when the quantity ordered exceeds current stock, including zero-stock orders. Check your pincode and current order details before paying.

6. Is GST shown on the purchase page?

Yes. The exact product's national listing displays its GST-inclusive price and tax breakdown. Check the live amount at checkout because product prices may change.
Order STANLEY STMT73439-8B for Mysore delivery: Check the current price, delivery details and buy the exact 18 mm impact socket on Indus MegaMart.