SATA12915-12916 3/8" Dr. Spark Plug Socket, 16mm & 21mm
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Product Overview
The SATA12915–12916 3/8" Dr. Spark Plug Socket is built to pull and seat spark plugs cleanly, without the chipped porcelain or dropped plugs that come from using the wrong tool. A rubber insert inside the socket grips the plug's insulator boot, holding it centered and secure as you lift it out of a deep, narrow plug well — and doing the same job in reverse to guide a new plug in straight and cushioned during install. Machined from chrome vanadium steel, it's available in the two most common spark plug hex sizes: 16mm and 21mm.
Key Features
- Rubber insert grip — cushions and holds the spark plug boot, preventing drops and cracked porcelain
- Deep, thin-wall design — reaches recessed plug wells common on modern engines
- Two common sizes (16mm, 21mm) — covers the vast majority of spark plug hex sizes
- Chrome vanadium steel construction — heat-treated for durability under repeated use
- 3/8" square drive — compatible with standard 3/8" ratchets and extensions
- SATA lifetime warranty — backed by one of the most trusted names in professional hand tools
Specification Table
| SKU | Size (mm) | Drive | Insert | Pcs/Pack |
|---|---|---|---|---|
| SATA12915 | 16 | 3/8" | Rubber boot-grip insert | 6 |
| SATA12916 | 21 | 3/8" | Rubber boot-grip insert | 6 |
Made in China. Overall length (L) was not listed on either the catalog sheet or the individual product pages — see note below.
Available Options (Variants)
Select your size from the dropdown:
| Option | SKU |
|---|---|
| 16mm | SATA12915 |
| 21mm | SATA12916 |
Package Contents
- 1 × SATA 3/8" Dr. Spark Plug Socket (size as selected)
Warranty Terms
Lifetime Warranty. Both SKUs (SATA12915 and SATA12916) explicitly list Lifetime Warranty on their individual product pages, so the fallback exclusion clause wasn't needed. This SATA socket is covered against manufacturing defects in materials and workmanship when used as intended. The warranty does not cover damage from misuse, use with power or impact tools, wear or perishing of the rubber insert, normal wear, or cosmetic wear.
Why Choose SATA?
SATA has grown into one of the fastest-growing premium-quality mechanics' hand tool brands in the world over the past two decades. Trusted by automotive technicians and industrial professionals across more than 50 countries, SATA tools are manufactured in ISO 9001–certified facilities and meet or exceed ANSI and DIN standards. In 1999, SATA became the first hand tool manufacturer in China to offer a lifetime warranty on its products — a commitment to quality and durability that professionals rely on every day. As part of Apex Tool Group, SATA combines global manufacturing scale with a singular focus on performance, precision, and long-term reliability.
- ✅ ISO 9001–certified manufacturing
- ✅ Meets or exceeds ANSI / DIN standards
- ✅ Lifetime warranty on covered products
- ✅ Trusted by professional mechanics in 50+ countries
- ✅ Precision-engineered for consistent, reliable performance
Order by 4PM to get delivered next working day! We use 24 hours service with carriers in most cases so that you can get your order delivered on time.
Free delivery for total orders above RM500, otherwise additional charges costs are calculated at checkout based on your order’s weight and delivery location.
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Please notify us within 14 calendar days of receiving your product to request a free exchange or full refund, if eligible. We will cover all return shipping costs, and no restocking fees will apply in this case.
Requests made after 14 days may be accepted at our discretion and will be subject to a 10% restocking fee. Techno Tools & Equipment reserves the right to reject any return request found to be ineligible.
Further details please click here for more info.