Double Ring Spanners · 6308
8 Piece Double Box End Wrench Set
Metric Ring Wrenches, Dual Sizes Per Tool, Secure Fastener Grip
Pay over time: how it works
- Shop Pay Installments — split into four interest-free payments, or monthly on larger orders. Choose Shop Pay at checkout.
- Affirm — monthly plans, with 0% APR up to 12 months on eligible orders. Choose Affirm — Pay Over Time under Payment in the standard checkout: the black Check out button, not the purple one.
- Checking your options does not affect your credit score. The price is the same whichever way you pay.
Sizes in this set
- Double Ring Wrench Metric 6 x 7, 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17, 18 x 19, 20 x 22 mm
What's included — 8 items · 8 pieces
- 630607 7mm Double Ring Wrench Metric 6 x
- 630809 9mm Double Ring Wrench Metric 8 x
- 631011 11mm Double Ring Wrench Metric 10 x
- 631213 13mm Double Ring Wrench Metric 12 x
- 631415 15mm Double Ring Wrench Metric 14 x
- 631617 17mm Double Ring Wrench Metric 16 x
- 631819 19mm Double Ring Wrench Metric 18 x
- 632022 22mm Double Ring Wrench Metric 20 x
Components shown in red can be bought separately.
- Fast US dispatch from our Fort Worth, Texas warehouse
- Genuine Teng Tools — professional-grade, designed in Sweden
- Secure checkout — encrypted payment, trusted providers
- Backed by guarantee — built to last a working lifetime
Why this one
Dual sizes on every tool
Each wrench in this 8-piece collection carries a ring opening at each end, giving you access to two different fastener sizes from a single tool.
Ring design grips securely
The enclosed ring openings wrap fully around the fastener head, distributing turning force evenly across all contact surfaces.
Built for professional demands
Whether you are working under a hood, inside an engine bay, or maintaining industrial equipment, these tools are sized and shaped for the tasks tradesmen face daily.
Reduces overall tool count
Because every wrench serves double duty with a ring on each end, the 8-piece collection effectively covers the range that would otherwise require a much larger number of single-size tools.
Prevents fastener damage
Rounded bolt heads are one of the most frustrating problems in any shop.
Read the full description
Sizes in this set:
- Double Ring Wrench Metric: 6 x 7, 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17, 18 x 19, 20 x 22 mm
Specifications
| Category | Double Ring Spanners |
|---|---|
| Part number | 6308 |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.