--- title: FG Mini Preset Torque Screwdrivers – FAQ & User Guide description: Learn how CTA-Series telescoping carbon torque arms improve ergonomics, tool positioning, and efficiency in assembly and production environments. --- - Chat - [Contact Us](https://go.mountztorque.com/contact-us?_gl=1*1t1uhd0*_gcl_au*MjMwOTIyMTI2LjE2ODU1OTU4Mjc.&_ga=2.126080644.843342068.1685595827-2758410.1685595827&hsLang=en-us) - [Sign in](https://www.mountztorque.com/secure/checkout.ssp?is=login&login=T&fragment=login-register&hsLang=en-us) - [![mountztorque](https://mountztorque.com/hubfs/MO18001_Logo_H_Color_Tag_RGB.svg)](https://www.mountztorque.com/?hsLang=en) - North America:[(408) 850-9978](tel:4088509978) - International:[+44 1428 741756](tel:441428741756) - [Shop Products](https://www.mountztorque.com/Product-Type) - [Learning Center](https://www.mountztorque.com/Learning-Center) - [About Us](https://www.mountztorque.com/about-us) - [Service and Calibration](https://go.mountztorque.com/usa-service?_gl=1*1itcg2n*_gcl_au*MjMwOTIyMTI2LjE2ODU1OTU4Mjc.&_ga=2.172874026.843342068.1685595827-2758410.1685595827) [![Mountz\_Assets\_ConversionCalculator\_white](https://mountztorque.com/hubfs/Mountz_Assets_ConversionCalculator_white.svg) Conversion Calculator](https://www.mountztorque.com/torque-conversion-calculator?hsLang=en) [![Mountz\_Assets\_TorqueToolFinder\_white](https://mountztorque.com/hubfs/Mountz_Assets_TorqueToolFinder_white.svg) Torque Tool Finder](https://www.mountztorque.com/torque-conversion-calculator?hsLang=en) [Skip to content](https://mountztorque.com/en-us/knowledge-base/fg-mini-preset-torque-screwdrivers-faq#main-content) English - United States Show submenu for translations ![vast.png](https://mountztorque.com/hs-fs/hubfs/Mountz%20Logo%20-%20HS.png?width=413&height=135&name=Mountz%20Logo%20-%20HS.png) - [Sample Contact Page](https://5139817.hs-sites.com/sample-contact) - [Sample About Page](https://5139817.hs-sites.com/sample-about) - [Default HubSpot Blog](https://mountztorque-5139817.hs-sites.com/blog) Open main navigation Close main navigation - [Sample Contact Page](https://5139817.hs-sites.com/sample-contact) - [Sample About Page](https://5139817.hs-sites.com/sample-about) - [Default HubSpot Blog](https://mountztorque-5139817.hs-sites.com/blog) - English - United States Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Mountz Torque Knowledge Base](https://mountztorque.com/en-us/knowledge-base?hsLang=en-us) 2. [Product Overviews](https://mountztorque.com/en-us/knowledge-base/product-overviews?hsLang=en-us) 3. [Torque Screwdrivers](https://mountztorque.com/en-us/knowledge-base/product-overviews?hsLang=en-us#torque-screwdrivers) # FG Mini Preset Torque Screwdrivers – FAQ & User Guide ## FG Mini preset torque screwdrivers are compact, precision tools designed for low-torque fastening applications. They use a cam-over mechanism and internal torque setting to ensure repeatable torque, prevent over-tightening, and reduce operator error in high-precision assembly environments. #### **Quick Answer** FG Mini screwdrivers deliver a fixed, repeatable torque using a cam-over clutch. They are ideal for small fasteners and precision applications where over-torque must be prevented. #### **Who This Is For** - Manufacturing & process engineers - Assembly operators - Quality & calibration teams - Medical, electronics, and aerospace manufacturers - CX and Sales teams supporting hand tools #### **When Should You Use This?** Use FG Mini preset screwdrivers when: - Torque must remain fixed and controlled - You are working with **small fasteners / low torque ranges** - Multiple operators need consistent results - Over-tightening could damage components #### **When Should You NOT Use This?** Do **not** use FG Mini if: - Torque values need to change frequently → use an adjustable tool - Higher torque ranges are required → use standard FG models - Torque data capture or traceability is required → use a transducerized system (e.g., an ECT- or EPT-Series Smart Screwdriver) ### **How FG Mini Preset Screwdrivers Work** FG Mini tools use a **cam-over clutch mechanism**: - Torque builds during fastening - Once the preset torque is reached, the tool “slips” - Prevents additional torque from being applied **Result:**Consistent torque, reduced fastener damage, and improved quality control ### **Core Features** - Internal, tamper-resistant torque adjustment - Cam-over clutch for torque limiting - Compact, lightweight design - Designed for micro-torque applications - ±6% torque accuracy (ISO compliant) --- ### Available Models The FG Mini Series includes two preset torque screwdriver families designed for low-torque and precision fastening applications. Each model can be preset to a specific torque value within its operating range and features a 1/4" female hex drive. **Color-Coded Model Options** FG Mini preset screwdrivers are available with four color-coded labels to help identify torque settings throughout production environments. ### FG-25z | Label Color | Item Number | Torque Range | Drive Size | | --- | --- | --- | --- | | Blue | 076705 | 3–25 ozf.in (2–17.7 cN·m) | 1/4" Female Hex | | Red | 076706 | 3–25 ozf.in (2–17.7 cN·m) | 1/4" Female Hex | | Green | 076707 | 3–25 ozf.in (2–17.7 cN·m) | 1/4" Female Hex | | Gold | 076708 | 3–25 ozf.in (2–17.7 cN·m) | 1/4" Female Hex | ### FG-50z | Label Color | Item Number | Torque Range | Drive Size | | --- | --- | --- | --- | | Blue | 076709 | 10–50 ozf.in (7.1–35.3 cN·m) | 1/4" Female Hex | | Red | 076710 | 10–50 ozf.in (7.1–35.3 cN·m) | 1/4" Female Hex | | Green | 076711 | 10–50 ozf.in (7.1–35.3 cN·m) | 1/4" Female Hex | | Gold | 076712 | 10–50 ozf.in (7.1–35.3 cN·m) | 1/4" Female Hex | ### Color coding helps operators quickly identify torque tools assigned to different fastening applications while reducing the chance of using the incorrect preset screwdriver. Model Selection Guide ### Choose the FG-25z when: - Torque requirements are between **3–25 ozf.in (2–17.7 cN·m)** - Working with micro-fasteners - Maximum precision is required - Limited working space requires a compact screwdriver ### Choose the FG-50z when: - Torque requirements are between **10–50 ozf.in (7.1–35.3 cN·m)** - Higher micro-torque is required - Small fasteners still require precise torque control ### Either model is a good choice when: - Over-torque prevention is important - Multiple operators require consistent torque - A compact preset screwdriver is preferred - Color-coded tool identification would benefit the production process ### Consider another Mountz screwdriver when: - **Higher torque is required** → Use a standard FG Preset Screwdriver - **Torque values change frequently** → Use an FGA Adjustable Screwdriver - **ESD protection is required** → Use an FG Mini ESD Preset Screwdriver - **Torque data collection and traceability are required** → Use an ECT- or EPT-Series Smart Screwdriver **What's Included** Each FG Mini preset screwdriver includes: - FG Mini preset screwdriver - Factory calibration certificate The screwdriver can be supplied preset to a specified torque value before shipment or adjusted later using a torque analyzer and the internal adjustment mechanism. --- ### Setup & Adjustment #### Internal Torque Adjustment FG Mini tools use an internal hex-key adjustment mechanism accessed through the end cap. A torque analyzer is required to verify the set point after any adjustment. To adjust torque: 1. Set up the screwdriver on a torque analyzer. 2. Use the adjustment hex key to modify the torque setting. 3. Verify the torque value using the analyzer. 4. Seal the end cap with a calibration sticker after adjustment. FG Mini tools do not feature an external torque adjustment scale. #### Factory Preset Option FG Mini tools can be supplied preset to a specific torque value for immediate production use. #### Can Torque Be Changed Later? Yes. FG Mini tools can be adjusted to a new torque value using a torque analyzer and internal adjustment mechanism. After adjustment, torque should be verified before returning the tool to production service. --- ### **Use Cases (Real-World Examples)** ### **1. Medical Device Assembly** Problem: Small screws stripped due to over-torque Solution: FG Mini ensures consistent torque and prevents damage --- ### **2. Electronics Manufacturing** Problem: Operator inconsistency across shifts Solution: Preset torque eliminates variation between operators --- ### **3. Aerospace Components** Problem: Tight tolerance fasteners require precise torque Solution: Cam-over mechanism ensures repeatable accuracy --- ### **Troubleshooting** ### **Issue 1: Torque feels inconsistent** **Cause:** Tool out of calibration **Solution:** Recalibrate using analyzer or send to lab --- ### **Issue 2: Tool slips too early** **Cause:** Torque set too low or internal adjustment drift **Solution:** Reset torque using analyzer --- ### **Issue 3: Fasteners still stripping** **Cause:** Incorrect torque specification **Solution:** Verify torque requirement for application --- ### **Issue 4: Operator thinks tool is broken** **Cause:** Misunderstanding of cam-over function **Solution:** Train operator—slip indicates correct torque reached --- ### **Issue 5: Cannot adjust torque** **Cause:** No external adjustment (by design) **Solution:** Use internal adjustment with proper tools --- ### **Calibration & Standards** FG Mini tools are calibrated and manufactured in accordance with **ISO 6789-1:2017** (Assembly tools for screws and nuts — Hand torque tools): - Recalibrate every **5,000 cycles** or every 12 months (whichever comes first), or - Based on internal quality requirements --- ### **Integration / Advanced Notes** - No PLC or MES integration (manual tool) - No data capture or traceability - Depends on proper calibration program - Risk: Incorrect torque setting without analyzer verification --- ### **Media & Supporting Content** **![FG Mini - Group](https://mountztorque.com/hs-fs/hubfs/Product%20Assets/Product%20Assets-%20FG%20Screwdrivers/FG%20Mini%20-%20Group.png?width=432&height=224&name=FG%20Mini%20-%20Group.png) ![Product Spotlight FG Mini](https://mountztorque.com/hs-fs/hubfs/Product%20Spotlight%20FG%20Mini.png?width=487&height=487&name=Product%20Spotlight%20FG%20Mini.png)**   - [Product Brochure](https://online.flippingbook.com/view/277843890/) - [FG Mini Preset Screwdrivers Product Page](https://www.mountztorque.com/Product-Type/Torque-Screwdrivers/Torque-Screwdrivers-Preset-Screwdrivers/Torque-Preset-Screwdrivers-FG-Mini?hsLang=en-us) --- ### **Related Articles / Content** - [Mountz Hand Tools Digital Catalog](https://mountztorque.com/choosing-between-preset-and-adjustable-torque-screwdrivers?hsLang=en-us) - [The Ultimate Preset Torque Screwdriver for Advanced Process and Quality Control](https://mountztorque.com/the-ultimate-preset-torque-screwdriver-for-advanced-process-and-quality-control?hsLang=en-us) - [How the Right Torque Screwdriver Ensures Consistent Quality](https://blog.mountztorque.com/quality/how-the-right-torque-screwdriver-ensures-consistent-quality) - [Guide: Choosing Between Preset and Adjustable Torque Screwdrivers](https://mountztorque.com/choosing-between-preset-and-adjustable-torque-screwdrivers?hsLang=en-us) - [Webinar: How To Select a Torque Wrench or Screwdriver to Improve QC Process](https://mountztorque.com/en-us/how-to-select-a-torque-wrench-or-screwdriver-to-improve-qc-process-2024?hsLang=en-us) ### **Need Help?** - [Contact Applications Engineering for setup guidance](https://mountztorque.com/en-us/contact-us?hsLang=en-us) - [Speak with Sales for product selection](https://mountztorque.com/en-us/contact-us?hsLang=en-us) - 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