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Asimeto Ring Thread Gauge (Go) - Metric - Right Hand - 6g - M20 x 1.5
SKU:685-20-5
The Asimeto Ring Gauge GO - Metric Fine 6g (685 Series) is a precision inspection tool designed to verify the diameter of cylindrical parts during production. Built for machinists, inspectors, and...
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Specification
| Thread Form | Metric |
| Size | M20 |
| Pitch | 1.5 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Right Hand |
| Tolerance | 6g |
£64.52
Prices shown ex. VAT
In Stock— only 2 left
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
The Asimeto Ring Gauge GO - Metric Fine 6g (685 Series) is a precision inspection tool designed to verify the diameter of cylindrical parts during production. Built for machinists, inspectors, and engineers who demand reliable Go checks, it delivers fast, repeatable results on the shop floor.
- Series and designation: 685 Series GO ring gauge in Metric Fine 6g for precise cylindrical sizing
- Material: High-quality steel for durability and long tool life
- Thread class: Metric Fine 6g threading ensures accurate alignment and consistent engagement
- Thread orientation: Right-hand thread for standard assembly and compatibility
- Size specification: M20 x 1.5 threaded interface tailored for common cylindrical components
- Intended use: Specifically designed for Go checks in automotive, aerospace, and engineering applications
Using this GO gauge streamlines quality control by delivering decisive pass/fail verification for cylindrical parts. Its robust steel construction resists wear in high-volume production, helping you reduce rework and maintain tight tolerances. The precise metric fine thread and right-hand orientation enable quick, repeatable measurements, making it a dependable addition to any inspection toolkit.
| Thread Form | Metric |
| Size | M20 |
| Pitch | 1.5 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Right Hand |
| Tolerance | 6g |
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
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Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
★★★★★
first place we look
honest about stock and prices are competitive.
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Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Full Range: Asimeto Ring Gauges - GO - Metric Fine 6g - 685 Series
View full collection →You are viewing 685-20-5. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 685-02-0 | M2 | 0.35 | £54.57 | In Stock | |
| 685-02-8 | M2.2 | 0.35 | £54.57 | In Stock | |
| 685-02-9 | M2.5 | 0.35 | £54.57 | In Stock | |
| 685-03-0 | M3 | 0.35 | £54.57 | In Stock | |
| 685-03-9 | M3.5 | 0.35 | £54.57 | In Stock | |
| 685-04-0 | M4 | 0.35 | £54.57 | In Stock | |
| 685-04-9 | M4.5 | 0.35 | £54.57 | In Stock | |
| 685-05-0 | M5 | 0.35 | £54.57 | In Stock | |
| 685-06-0 | M6 | 0.35 | £54.57 | In Stock | |
| 685-04-1 | M4 | 0.5 | £50.14 | In Stock | |
| 685-05-1 | M5 | 0.5 | £50.14 | In Stock | |
| 685-06-1 | M6 | 0.5 | £50.14 | In Stock | |
| 685-08-1 | M8 | 0.5 | £50.14 | In Stock | |
| 685-10-1 | M10 | 0.5 | £54.57 | In Stock | |
| 685-12-1 | M12 | 0.5 | £60.83 | In Stock | |
| 685-06-2 | M6 | 0.75 | £42.03 | In Stock | |
| 685-07-2 | M7 | 0.75 | £42.03 | 4 weeks | |
| 685-08-2 | M8 | 0.75 | £46.82 | In Stock | |
| 685-10-2 | M10 | 0.75 | £50.14 | In Stock | |
| 685-12-2 | M12 | 0.75 | £65.62 | In Stock | |
| 685-08-3 | M8 | 1 | £42.03 | 4 weeks | |
| 685-09-3 | M9 | 1 | £42.03 | 4 weeks | |
| 685-10-3 | M10 | 1 | £42.03 | 4 weeks | |
| 685-11-3 | M11 | 1 | £44.98 | In Stock | |
| 685-12-3 | M12 | 1 | £45.72 | 4 weeks | |
| 685-14-3 | M14 | 1 | £61.20 | In Stock | |
| 685-16-3 | M16 | 1 | £61.20 | 4 weeks | |
| 685-18-3 | M18 | 1 | £62.68 | 4 weeks | |
| 685-20-3 | M20 | 1 | £71.53 | 4 weeks | |
| 685-21-3 | M21 | 1 | £75.22 | In Stock | |
| 685-22-3 | M22 | 1 | £75.22 | 4 weeks | |
| 685-23-3 | M23 | 1 | £82.22 | 4 weeks | |
| 685-24-3 | M24 | 1 | £82.22 | 4 weeks | |
| 685-25-3 | M25 | 1 | £82.22 | 4 weeks | |
| 685-26-3 | M26 | 1 | £82.22 | 4 weeks | |
| 685-27-3 | M27 | 1 | £82.22 | In Stock | |
| 685-28-3 | M28 | 1 | £82.22 | In Stock | |
| 685-30-3 | M30 | 1 | £113.56 | 4 weeks | |
| 685-32-3 | M32 | 1 | £113.56 | In Stock | |
| 685-33-3 | M33 | 1 | £115.40 | 4 weeks | |
| 685-34-3 | M34 | 1 | £115.40 | In Stock | |
| 685-35-3 | M35 | 1 | £115.40 | In Stock | |
| 685-36-3 | M36 | 1 | £131.62 | 4 weeks | |
| 685-38-3 | M38 | 1 | £131.62 | In Stock | |
| 685-39-3 | M39 | 1 | £131.62 | In Stock | |
| 685-40-3 | M40 | 1 | £131.62 | 4 weeks | |
| 685-42-3 | M42 | 1 | £158.17 | In Stock | |
| 685-45-3 | M45 | 1 | £158.17 | 4 weeks | |
| 685-48-3 | M48 | 1 | £164.44 | In Stock | |
| 685-50-3 | M50 | 1 | £164.44 | In Stock | |
| 685-52-3 | M52 | 1 | £161.86 | 4 weeks | |
| 685-55-3 | M55 | 1 | £170.70 | 4 weeks | |
| 685-56-3 | M56 | 1 | £170.70 | 4 weeks | |
| 685-58-3 | M58 | 1 | £170.70 | 4 weeks | |
| 685-10-4 | M10 | 1.25 | £43.87 | In Stock | |
| 685-12-4 | M12 | 1.25 | £43.87 | 4 weeks | |
| 685-14-4 | M14 | 1.25 | £52.72 | 4 weeks | |
| 685-12-5 | M12 | 1.5 | £45.35 | In Stock | |
| 685-14-5 | M14 | 1.5 | £53.83 | 4 weeks | |
| 685-16-5 | M16 | 1.5 | £58.99 | In Stock | |
| 685-18-5 | M18 | 1.5 | £64.52 | In Stock | |
| 685-20-5 Viewing | M20 | 1.5 | £64.52 | In Stock | |
| 685-22-5 | M22 | 1.5 | £66.00 | 4 weeks | |
| 685-24-5 | M24 | 1.5 | £71.90 | 4 weeks | |
| 685-25-5 | M25 | 1.5 | £71.90 | 4 weeks | |
| 685-26-5 | M26 | 1.5 | £76.69 | 4 weeks | |
| 685-27-5 | M27 | 1.5 | £76.69 | 4 weeks | |
| 685-28-5 | M28 | 1.5 | £102.13 | 4 weeks | |
| 685-30-5 | M30 | 1.5 | £102.13 | In Stock | |
| 685-32-5 | M32 | 1.5 | £102.13 | 4 weeks | |
| 685-33-5 | M33 | 1.5 | £103.98 | In Stock | |
| 685-34-5 | M34 | 1.5 | £119.46 | In Stock | |
| 685-35-5 | M35 | 1.5 | £119.46 | 4 weeks | |
| 685-36-5 | M36 | 1.5 | £119.46 | In Stock | |
| 685-38-5 | M38 | 1.5 | £119.46 | In Stock | |
| 685-40-5 | M40 | 1.5 | £141.21 | 4 weeks | |
| 685-42-5 | M42 | 1.5 | £154.11 | In Stock | |
| 685-45-5 | M45 | 1.5 | £154.11 | 4 weeks | |
| 685-48-5 | M48 | 1.5 | £154.11 | In Stock | |
| 685-50-5 | M50 | 1.5 | £175.13 | In Stock | |
| 685-52-5 | M52 | 1.5 | £172.18 | 4 weeks | |
| 685-55-5 | M55 | 1.5 | £172.18 | In Stock | |
| 685-56-5 | M56 | 1.5 | £172.18 | 4 weeks | |
| 685-58-5 | M60 | 1.5 | £172.18 | 4 weeks | |
| 685-60-5 | M60 | 1.5 | £201.68 | 4 weeks | |
| 685-18-6 | M18 | 2 | £69.68 | 4 weeks | |
| 685-20-6 | M20 | 2 | £69.68 | 4 weeks | |
| 685-22-6 | M22 | 2 | £75.22 | 4 weeks | |
| 685-24-6 | M24 | 2 | £75.22 | 4 weeks | |
| 685-26-6 | M26 | 2 | £80.74 | In Stock | |
| 685-27-6 | M27 | 2 | £80.74 | 4 weeks | |
| 685-28-6 | M28 | 2 | £80.74 | 4 weeks | |
| 685-30-6 | M30 | 2 | £87.02 | 4 weeks | |
| 685-32-6 | M32 | 2 | £87.02 | 4 weeks | |
| 685-33-6 | M33 | 2 | £89.22 | 4 weeks | |
| 685-34-6 | M34 | 2 | £106.18 | In Stock | |
| 685-35-6 | M35 | 2 | £106.18 | In Stock | |
| 685-36-6 | M36 | 2 | £106.18 | 4 weeks | |
| 685-38-6 | M38 | 2 | £106.18 | In Stock | |
| 685-39-6 | M39 | 2 | £106.18 | 4 weeks | |
| 685-40-6 | M40 | 2 | £153.74 | In Stock | |
| 685-42-6 | M42 | 2 | £154.11 | 4 weeks | |
| 685-45-6 | M45 | 2 | £154.11 | 4 weeks | |
| 685-48-6 | M48 | 2 | £169.23 | In Stock | |
| 685-50-6 | M50 | 2 | £169.23 | In Stock | |
| 685-52-6 | M52 | 2 | £166.28 | 4 weeks | |
| 685-55-6 | M55 | 2 | £166.28 | 4 weeks | |
| 685-56-6 | M56 | 2 | £166.28 | In Stock | |
| 685-58-6 | M58 | 2 | £166.28 | 4 weeks | |
| 685-60-6 | M60 | 2 | £172.55 | In Stock | |
| 685-30-7 | M30 | 3 | £99.54 | In Stock | |
| 685-33-7 | M33 | 3 | £101.76 | In Stock | |
| 685-36-7 | M36 | 3 | £108.77 | 4 weeks | |
| 685-39-7 | M39 | 3 | £108.77 | In Stock | |
| 685-40-7 | M40 | 3 | £151.17 | In Stock | |
| 685-42-7 | M42 | 3 | £151.17 | In Stock | |
| 685-45-7 | M45 | 3 | £151.17 | In Stock | |
| 685-48-7 | M48 | 3 | £151.17 | In Stock | |
| 685-50-7 | M50 | 3 | £151.17 | In Stock | |
| 685-52-7 | M52 | 3 | £148.22 | 4 weeks | |
| 685-55-7 | M55 | 3 | £175.50 | 4 weeks | |
| 685-56-7 | M56 | 3 | £174.76 | In Stock | |
| 685-58-7 | M58 | 3 | £175.50 | 4 weeks | |
| 685-60-7 | M60 | 3 | £187.30 | 4 weeks |
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