LUM12 PR5 : Pneumatic, straight, shut-off screwdriver with push start and button reverse - Atlas Copco Liberia

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LUM12 PR5 : Pneumatic, straight, shut-off screwdriver with push start and button reverse

8431 0278 30


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The LUM12 PR is the workhorse of our pneumatic screwdriver line-up! This tool combines the best engineering, continuously refined and improved, to bring you great durability and productivity. All key internal components are produced in our own plant in Sweden, ensuring that each tool is of the highest quality and that performance will be maintained at all times. This is a straight tool with a push start, meaning that the tool will start when pushed lightly against the screw. To reverse the tool, a button at the top of the tool needs to be pushed in or locked in that position. As with all straight tools a torque arm is recommended to take up the reaction forces and the tool is of course prepared for such an accessory. All LUM models are equipped with a spring-operated shut-off clutch, designed by Atlas Copco, that is set with a Philips screwdriver – simple, fast and reliable!

Features & benefits

  • Superior ergonomics
    – Small tool for low weight
    – Fast shut-off clutch gives lower reaction torque
  • Compact size for accessibility in cramped spaces
  • Reversible
  • Quick change chuck
  • Lubrication-free
  • Straight screwdrivers should be used with a torque arm for best ergonomics

Technical data

Technical Specifications
Model typePistol
Torque range soft joint0.4 - 5 Nm
Free speed450 r/min
Weight0.55 kg
Length195 mm
CS distance20 mm
Air consumption at free speed4.5 l/s
Rec hose size152.4 mm
Air inlet thread1/8 mm
Max working pressure7 bar
Sound standardISO15744
Sound pressure75 dB(A)
Sound uncertainty3 dB(A)
Vibration standardISO28927-2
Vibration value<2.5 m/s²

Included accessories with this product

  • Exhaust hose

    Exhaust hose

    4210 2929 00

  • Screwdriver - Cross



    4080 0650 00

  • Suspension yoke

    Suspension yoke

    4210 1810 00

Spare parts lists, Dimensional drawings, Exploded Views, Service Instructions, etc.

Spare parts, Dimensional Drawings, Service Instructions, Industrial tools.
Below you find links to Atlas Copco ServAid application, where you find spare parts list and product instructions and a link to the Dimensional Drawing archive where you can find 2D and 3D drawings in PDF, DXF and IGS format.

Atlas Copco Service

The Leader in tool maintenance for industry Atlas Copco service is a proven cost-saver in your production. The savings you can expect from running a service program depend on the type of production you have in your plant. Many factors are taken into consideration, including: Line assembly, work at fixed stations, frequency of tool use, tool types, applications, and work environment.

Repair Service

With today’s high demands on minimizing downtime for our customers, we focus on specialized workshops that can handle quick repairs and complete overhauls in the most cost-efficient way. To do that we keep a large inventory of spare parts in stock, and we have upgraded with factory fixtures and test equipment to increase our efficiency. With all this, plus certified mechanics dedicated to specific tool models, we’ve minimized lead times and improved the quality of each repair. After service all tools are rigorously tested to Atlas Copco specifications.
Read more about Repair Service

Atlas Copco ToolScan

Tool service
Atlas Copco ToolScan™ report informs you of the status of your air tools and air supply at each workstation. The service is carried out by a highly experienced certified technician and covers the following areas:
  • AirScan of the air supply at each workstation.
  • Status and performance check of the tools
  • Other services can be added.
A report informing you of the status of your air supply and tools, including recommendations for improvements. You can then, together with your team, decide the next step without a binding agreement.
Read more about Atlas Copco ToolScan™

Energy Efficiency Audit

A huge amount of energy is wasted due to leaks in compressed air systems. Capacity losses of up to 20% are common in many installations. During an Energy Efficiency Audit Atlas Copco checks the static and dynamic pressure for your air tools on the line. The pressure drop is measured and documented and a visual inspection of the air installation is performed. Based on the information acquired, using the Energy Efficiency Calculator, Atlas Copco recommends the correct installation in terms of air line accessories and various other aspects.

Read more about Energy efficiency Audit

Calibration Service

Calibration in Service Lab
With our network of calibration laboratories we can offer a complete package of calibration services to help you control quality for all assembly tools and measurement equipment in your production.

Read more about Calibration services.

Preventive Maintenance

Like other machines, Atlas Copco industrial power tools need regular maintenance in order to fulfill their full potential in terms of performance and reliability. Different agreements are available, tailored to your needs. We offer maintenance both on-site or off-site, or a combination.

Read more about Preventive Maintenance

Full Coverage Service

Our Full Coverage option keeps your power tools in top operating condition and gives you a fixed budget for all tool maintenance. Other services can be added. To develop the optimum service program for your specific manufacturing operation, take advantage of our unique ToolScan RCM process.

Full Coverage includes:
  • Repair, including parts
  • Calibration
  • Preventive maintenance program
  • On-site/off-site options
  • Other services can be added
Read more about Full Coverage service

Outsourcing solutions

We have extensive experience of outsourcing solutions and currently have more than 75 on-site workshops. These are examples of the areas we cover:
  • Preventive maintenance, repair and calibration of all
    brands and types of tools.
  • Installation and start-up support.
  • Service management system, including developing Key Performance Indicators.
  • Line and process support.
  • Back-up tool/equipment and spare parts management.
  • Other customer requests.
Read more about Outsourcing Solutions


  • Hose nipple - 6.3 mm (1/4")

    Hose nipple

    6.3 mm (1/4")

    9000 0240 00

  • Balancer

    RIL 2C

    8202 0701 19

  • Balancer

    RIL 2C

    8202 0701 19

  • Productivity kit

    MIDI Optimizer F/RD EQ08-C06-1/8

    8202 0850 10

  • Quick change chuck kit

    4210 2326 91

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Atlas Copco USA - Eco Design
Eco Design and environmental aspects of product development is nothing new to us. Atlas Copco has a history of developing modular tools with a deep respect for materials and natural resources used in the products. We always strive to maximize the functionality of the product and at the same time minimize the energy consumption to make sure the environmental impact is as low as possible. By developing accurate tools we make sure the customer never has to waste time or energy to re-do an operation. For battery tools we also have the option to connect multiple tools to one controller and thereby decrease the standby energy consumption considerably.

Eco Design is all about minimizing a product's environmental impact during its entire life-cycle, including extraction of raw materials, manufacturing, customer usage and recycling while maximizing the productivity.

Our approach to Eco Design

Eco Design
Within Industrial Technique we approach Eco Design from six different areas. These form the core of the Eco Design review performed in each product development project. This procedure helps define Eco Design targets early in the project.
    We avoid hazardous substances and materials listed on the Atlas Copco Restricted & Prohibited list.
    We use materials and structural features to minimize the product’s weight and invest in strong, durable materials to protect the product.
    We avoid mixing materials since blends inhibit recycling and consider fastening methods to facilitate disassembly.
    We consider how the final product will be used in order to minimize energy and resource consumption in the use phase, in production and during transportation.
    We design with recycling in mind. We promote repair and upgrading, especially for long lasting and system-dependent products. To increase the customer’s awareness regarding the importance of recycling, we are now including Recycling Instructions in the Product Information (PI).
    We prepare for upgrading, maintenance and recycling, through labelling, modularization and information in the product information.
This is how we do Sustainable Productivity in practice!


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