SATA 12903–12905 Wobble Extension Bar 3/8" Drive 3", 6" & 10"
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Product Overview
The SATA 12903–12905 3/8" Dr. Wobble Extension Bar extends a ratchet's reach into recessed or hard-to-line-up fasteners, with a drive tip that can angle slightly off-axis without losing its grip on the socket — useful when a bolt sits at a slight angle or behind an obstruction that won't let a rigid extension seat straight. Once a socket is inserted, it also functions as a standard rigid extension, so it doesn't cost you anything in stability where the wobble isn't needed. Machined from chrome vanadium steel and available in three lengths — 3" (75mm), 6" (150mm), and 10" (250mm) — to match the reach a job calls for.
Key Features
- Wobble drive tip — lets the socket angle off-axis to reach fasteners a rigid extension can't line up with
- Doubles as a standard extension — full rigidity and turning power once a socket is seated
- Three lengths (3", 6", 10") — match reach to the job without over-extending
- Chrome vanadium steel construction — heat-treated for durability under repeated torque
- Knurled grip section — secure handhold when steadying the bar during use
- 3/8" square drive — compatible with standard 3/8" ratchets and breaker bars
- SATA lifetime warranty — backed by one of the most trusted names in professional hand tools
Specification Table
| SKU | Length | Overall Length L (mm) | Drive | Function | Pcs/Pack |
|---|---|---|---|---|---|
| SATA12903 | 3" | 75 | 3/8" | Wobble / standard extension | 6 |
| SATA12904 | 6" | 150 | 3/8" | Wobble / standard extension | 6 |
| SATA12905 | 10" | 250 | 3/8" | Wobble / standard extension | 6 |
Warranty: 30 days from purchase date
Made in China. Dimensions are approximate and may vary slightly within manufacturing tolerance.
Available Options (Variants)
Select your length from the dropdown:
| Option | SKU |
|---|---|
| 3" (75mm) | SATA12903 |
| 6" (150mm) | SATA12904 |
| 10" (250mm) | SATA12905 |
Package Contents
- 1 × SATA 3/8" Dr. Wobble Extension Bar (length as selected)
Warranty Terms
Lifetime Warranty. This SATA extension bar 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, bending or torque overload beyond rated capacity, normal wear, or cosmetic wear.
SATA 3/8" Drive Extension Bar comparison: Wobble vs Locking vs Flexible
| Spec | SATA 12903–12905 Wobble (this model) | SATA 12906–12908 Locking | SATA 12922 Flexible |
|---|---|---|---|
| Type | Wobble extension | Locking extension | Flexible extension (flex shaft) |
| Lengths | 3", 6", 10" (75 / 150 / 250mm) | 3", 6", 10" (75 / 150 / 250mm) | 150mm (single length) |
| Off-axis reach | Slight angle at the drive tip | Straight only | Shaft bends around obstructions |
| Socket retention | No locking device | One-hand spring-loaded lock | – |
| Best for | Bolts that sit slightly off-line or behind an obstruction | Overhead and engine-bay work where a dropped socket is a risk | Fasteners with no straight-line access at all |
Compatible Accessories
- SATA 12971 Quick-Release Teardrop Ratchet 3/8" – everyday 3/8" drive ratchet to turn the extension
- SATA 12972 Quick-Release Ratchet 3/8" with Grip – 200mm ratchet with comfort grip for extra leverage
- SATA 12912 Universal Joint 3/8" – add a full joint when the wobble angle isn't enough
- SATA 12913 / 12914 Socket Adaptor 3/8" – fit 1/4" or 1/2" sockets to the 3/8" drive
Works with
- SATA 12301–12318 Metric Socket 3/8" Drive 6-Point
- SATA 12401–12415 Metric Deep Socket 3/8" Drive 6-Point
- SATA 22101–22111 Torx Bit Socket 3/8" Drive
- SATA 22201–22207 Hex Bit Socket 3/8" Drive
- SATA 22401–22403 Pozidriv Bit Socket 3/8" Drive
- SATA 22501–22504 Slotted Bit Socket 3/8" Drive
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
Warranty Terms
All SATA products, unless otherwise stated, are warranted against manufacturing defects in materials and workmanship, subject to intended use and fair wear and tear.
| Product Category | Period |
|---|---|
| Hand Tools | Lifetime |
| Torque Products | Calibration: 90 days Tool: 1 year |
| Bits, Bit Holders, Bit Sockets, Extensions, Taps & Dies, Files & Cutting Tools | 30 days |
| Accessories, Cases, Pouches, Toolboxes & Consumables | 1 year |
Warranty periods start from the purchase date.
| Warranty period | Lifetime Warranty |
|---|---|
| Coverage | Free repair or replacement for functional faults arising during normal use. No time limit. |
| Not covered | Wear beyond the tool's normal service life; rust, plating wear, surface scratches or handle damage that does not affect function; parts marked as consumables in the SATA catalogue (e.g. coloured sleeves, brackets, power bars); packaging. |
| Warranty void if | Damage from misuse or abnormal operation (e.g. striking, prying, using hand sockets on impact tools, exceeding the tool's rated capacity); the product has been machined or modified, or parts have been replaced, lost or are incomplete. |
Bring the product to Techno Tools as an authorised SATA dealer. SATA repairs the product first and replaces it if repair is not possible.
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 orders above RM500 with a total weight under 22kg. Otherwise, delivery charges are calculated at checkout based on your order’s weight and delivery location.
Further details please click here for more info.
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.










