--- title: BL-Series Brushless Electric Screwdrivers – FAQ & User Guide description: Learn about the Mountz BL-Series brushless electric screwdrivers, including available models, torque ranges, vacuum and ESD configurations, OPC screw counting models, setup, maintenance, and applications for precision production fastening. --- - 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/bl-series-brushless-electric-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. [Electric Screwdrivers](https://mountztorque.com/en-us/knowledge-base/product-overviews?hsLang=en-us#electric-screwdrivers) # BL-Series Brushless Electric Screwdrivers – FAQ & User Guide ## The Mountz BL-Series Brushless Electric Screwdrivers are designed for precision production fastening applications that require accuracy, reliability, and long tool life. Featuring a high-performance brushless motor, automatic shut-off clutch, and multiple start system options, the BL-Series delivers consistent torque control for electronics, medical device, aerospace, and industrial assembly applications. ### Quick Answer The BL-Series is a line of brushless electric clutch screwdrivers designed for precision assembly applications requiring accurate, repeatable torque control. Featuring a high-performance brushless motor, automatic shut-off clutch, multiple start configurations, and optional ESD, vacuum, and OPC models, the BL-Series delivers reliable fastening performance for demanding production environments. --- ### Who This Is For - Manufacturing engineers - Process engineers - Quality engineers - Assembly operators - Electronics manufacturers - Medical device manufacturers - Aerospace manufacturers - Industrial assembly facilities --- ### When Should You Use This? **Use the BL-Series when:** - Precision torque control is required - High-volume production fastening is performed - Long motor life and reduced maintenance are important - Continuous-duty operation is required - ESD-safe assembly is needed - Vacuum pick-up is required for small fasteners - Screw counting or error-proofing is part of the assembly process - Adjustable torque settings are needed --- ### When Should You NOT Use This? **The BL-Series may not be the best choice when:** - High-torque fastening above 30 lbf.in is required - Torque and angle traceability are needed - Fastening data collection is required - Advanced programmable fastening strategies are required - A cordless screwdriver is preferred For torque-and-angle monitoring or programmable fastening strategies, consider the Mountz ECT-Series or EPT-Series. --- ### How the BL-Series Works The BL-Series uses a high-performance brushless motor to drive a precision automatic shut-off clutch. **During operation, the screwdriver:** - Delivers repeatable torque output - Automatically shuts off when the preset torque is reached - Allows external torque adjustment - Minimizes heat buildup during continuous operation - Reduces maintenance through brushless motor technology - Supports high-volume production fastening **Result:** - Accurate torque control - Improved fastening consistency - Longer motor life - Reduced maintenance - Increased production efficiency --- ### Core Features - High-performance brushless motor - Precision automatic shut-off clutch - External torque adjustment scale - Designed for continuous-duty production - Minimal heat buildup during operation - Soft-texture ergonomic grip - Lever-start and Two-Way Start models - Vacuum models available - ESD-safe models available - Vacuum/ESD models available - OPC models compatible with the HIOS BLOP-STC Screw Counter Transformer - Requires a compatible transformer (power supply) --- ### Configuration Options The BL-Series is available in several configurations to support different assembly applications. | Configuration | Best For | | --- | --- | | Lever Start | Standard production fastening | | Two-Way Start (Lever & Push-to-Start) | Flexible production environments | | ESD Models | Static-sensitive electronics assembly | | Vacuum Models (BLQ) | Picking up and installing small screws | | Vacuum + ESD Models | Static-sensitive applications requiring vacuum pickup | | OPC Models | Screw counting and error-proofing applications | --- ### Available Models The BL-Series includes multiple brushless electric screwdrivers covering torque ranges from **0.17 to 30 lbf.in (2–340 cN·m)**. Models are available with standard, ESD, vacuum, vacuum/ESD, and OPC configurations to support a wide range of production fastening applications. ##### BL-Series Model Chart | Model | Item Number | Driver Type | Torque Range | RPM (High/Low) | Drive Size | | --- | --- | --- | --- | --- | --- | | BL-2000ESD | 144390 | ESD Lever Start | 0.17–1.7 lbf.in | 990 / 650 | 4 mm HIOS | | BL-2000ESD-OPC | 144312 | ESD Lever Start | 0.17–1.7 lbf.in | 990 / 650 | 4 mm HIOS | | BL-3000 | 144393 | Two-Way Start | 1.7–4.8 lbf.in | 980 / 680 | 4 mm HIOS | | BLQ-3000 | 144394 | Vacuum Two-Way Start | 1.7–4.8 lbf.in | 980 / 680 | 4 mm HIOS | | BL-3000ESD | 144395 | ESD Two-Way Start | 1.7–4.8 lbf.in | 980 / 680 | 4 mm HIOS | | BLQ-3000ESD | 144396 | Vacuum/ESD Two-Way Start | 1.7–4.8 lbf.in | 980 / 680 | 4 mm HIOS | | BL-3000-OPC | 144313 | Two-Way Start | 1.7–4.8 lbf.in | 980 / 680 | 4 mm HIOS | | BL-5000X | 144383 | Two-Way Start | 1.7–10 lbf.in | 900 / 590 | 1/4" Female Hex | | BLQ-5000X | 144388 | Vacuum Two-Way Start | 1.7–10 lbf.in | 900 / 590 | 1/4" Female Hex | | BL-5000XESD | 144385 | ESD Two-Way Start | 1.7–10 lbf.in | 900 / 590 | 1/4" Female Hex | | BLQ-5000XESD | 144387 | Vacuum/ESD Two-Way Start | 1.7–10 lbf.in | 900 / 590 | 1/4" Female Hex | | BL-5000X-OPC | 144389 | Two-Way Start | 1.7–10 lbf.in | 900 / 590 | 1/4" Female Hex | | BL-7000X | 144397 | Two-Way Start | 6.1–24 lbf.in | 960 / 630 | 1/4" Female Hex | | BL-7000XESD | 144398 | ESD Two-Way Start | 6.1–24 lbf.in | 960 / 630 | 1/4" Female Hex | | BL-7000X-OPC | 144376 | Two-Way Start | 6.1–24 lbf.in | 960 / 630 | 1/4" Female Hex | | BL-7000X-HT | 144399 | Two-Way Start | 6.1–30 lbf.in | 700 / 500 | 1/4" Female Hex | | BL-7000X-HTESD | 144309 | ESD Two-Way Start | 6.1–30 lbf.in | 700 / 500 | 1/4" Female Hex | --- ### Model Selection Guide | If you need: | Recommended Model | | --- | --- | | Ultra-low torque precision fastening | BL-2000 Series | | Small electronics assembly | BL-3000 Series | | Vacuum pickup for miniature screws | BLQ-3000 or BLQ-5000X | | General production fastening | BL-5000X Series | | Medium-torque assembly | BL-7000X Series | | Highest torque capacity | BL-7000X-HT | | ESD-safe production | Any ESD model | | Screw counting and error-proofing | OPC models | | Maximum flexibility | Two-Way Start models | --- ### Compatible Accessories | Accessory | Purpose | | --- | --- | | Compatible Transformer | Required power supply | | HIOS BLOP-STC Screw Counter Transformer | Required for OPC models | | Tool Balancer | Reduces operator fatigue during repetitive assembly | | HIOS Bits | For BL-2000 and BL-3000 models | | Power Bits | For BL-5000X and BL-7000X models | | Hex-to-HIOS Adapter | Adapts hex bits for HIOS applications | --- ### Transformer The BL-Series requires a compatible transformer (power supply) for operation. **Note:** OPC models are designed to operate only with the **HIOS BLOP-STC Screw Counter Transformer**, enabling screw counting and additional error-proofing capabilities. --- ### Setup & Adjustment 1. Connect the BL-Series screwdriver to the appropriate transformer. 2. Install the correct driver bit for the application. 3. Adjust the external torque setting using the torque adjustment scale. 4. Verify torque output with a calibrated torque analyzer before production. 5. If using a vacuum model, connect the vacuum supply and verify proper screw pickup. 6. If using an OPC model, connect the HIOS BLOP-STC Screw Counter Transformer and verify communication. 7. Perform sample fastenings and make final torque adjustments before beginning production. 8. Periodically verify torque output as part of your quality control program. --- ### Common Applications **The BL-Series is commonly used in:** - Electronics assembly - Medical device manufacturing - Aerospace assembly - Consumer electronics manufacturing - Telecommunications equipment assembly - Industrial product assembly - High-volume production environments requiring precision fastening - Applications requiring ESD protection, vacuum pickup, or screw counting --- ### Use Cases (Real-World Examples) ### Electronics Assembly **Problem:** Small electronic assemblies require precise, repeatable torque while protecting sensitive components from electrostatic discharge. **Solution:** ESD-safe BL-Series models provide consistent torque control while helping protect sensitive electronics during assembly. ### Small Screw Assembly **Problem:** Operators struggle to handle miniature fasteners efficiently during high-volume production. **Solution:** BLQ vacuum models pick up and hold screws, improving productivity while reducing dropped fasteners and operator handling time. ### High-Volume Production **Problem:** Continuous production environments require reliable fastening tools with minimal maintenance and consistent performance. **Solution:** The BL-Series combines a high-performance brushless motor with an automatic shut-off clutch to deliver repeatable torque while reducing maintenance associated with brushed motors. ### Error-Proofing Applications **Problem:** Manufacturers need to verify that every required fastener has been installed before completing the assembly. **Solution:** OPC models work with the HIOS BLOP-STC Screw Counter Transformer to support screw counting and help reduce assembly errors. --- ### Maintenance - Verify torque output regularly using a calibrated torque analyzer. - Inspect the bit holder and drive components for wear or damage. - Keep the screwdriver clean and free of dust and debris. - Inspect the power cable and transformer before operation. - For vacuum models, periodically inspect and clean the vacuum nozzle and tubing. - Replace worn screwdriver bits as needed to maintain fastening accuracy. - Periodically verify torque settings as part of your preventive maintenance program. --- ### Integration & Advanced Features - High-performance brushless motor - Precision automatic shut-off clutch - External torque adjustment - Lever-start and Two-Way Start configurations - Vacuum models available - ESD-safe models available - Vacuum/ESD models available - OPC models compatible with the HIOS BLOP-STC Screw Counter Transformer - Compatible with vacuum pickup systems for miniature fasteners - Designed for continuous-duty production fastening - Long motor life with reduced maintenance - Supports precision low- to medium-torque fastening applications --- ### Media & Supporting Content                                                                       ![bl7000xesd-144398\_01.mainview](https://mountztorque.com/hs-fs/hubfs/bl7000xesd-144398_01.mainview.jpg?width=600&height=600&name=bl7000xesd-144398_01.mainview.jpg) - [BL-Series Product Page](https://www.mountztorque.com/Product-Type/Power-Assembly-Tools/Power-Assembly-Electric-Screwdrivers/Power-Assembly-Clutch-Screwdrivers/Electric-Screwdrivers-BL-Series?hsLang=en-us) - [BL-Series Data Sheet](https://www.mountztorque.com/core/media/media.nl?id=5794857&c=456127&h=fvILeLIN1CAgPtjc0-K6lcQvHO45KGs_o_hUJXnbZBT9XkTW&hsLang=en-us) - [BL-Series Operating Manual](https://www.mountztorque.com/core/media/media.nl?id=5743786&c=456127&h=-HYZDIvNwcC8HbCF0oOja2fRilYgb4aWD2XS0Gfk2REVyu2a&hsLang=en-us) - [BLC-45 Transformer](https://www.mountztorque.com/BLC-45-Transformer?quantity=1&hsLang=en-us) - [BLC-70 Transformer](https://www.mountztorque.com/BLC-70-Transformer?quantity=1&hsLang=en-us) --- ### Related Articles/Content - [On-Demand Webinar: How to Select an Electric Screwdriver for Your Manufacturing Process](https://mountztorque.com/en-us/how-to-choose-an-electric-screwdriver-for-precision-assembly-2026?hsLang=en-us) - [Guide: Longevity of Brushless Electric Screwdrivers versus Standard Electric Screwdrivers](https://mountztorque.com/longevity-of-brushless-electric-screwdrivers-versus-standard-electric-screwdrivers?hsLang=en-us) - [Guide: Optimizing Your Assembly Process: Selecting the Right Electric Screwdriver](https://mountztorque.com/optimizing-your-assembly-process-selecting-the-right-electric-screwdriver?hsLang=en-us) - [Case Study: Aerospace Manufacturer Increases Production Efficiency With Brushless Electric Screwdrivers](https://mountztorque.com/aerospace-manufacturer-increases-production-efficiency-with-brushless-electric-screwdrivers?hsLang=en-us) - [Mountz Torque Brushless Electric Screwdrivers Bang Sheet](https://online.flippingbook.com/view/496028839/) - [Mountz Power Tools Service Card](https://online.flippingbook.com/view/326143065/) - 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