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Four key factors to ensure optimal performance of your pneumatic tool

August 26, 2019

Impact Wrenches Tools Air line Accessories

Have you found that your pneumatic tool is underpowered or not running as expected? Well, it could all come down to your air line accessories and/or connection, rather than the tool itself. It’s worth quickly checking your air line installation – a simple job that only takes a couple of minutes.

expert article - air line accessories selection - header

It’s easy: each accessory from the filter, regulator and lubricator (FRL) to the tool’s inlet should be selected considering the following four key tool values:

1. Inlet size

expert article - air line accessories selection - icons - Tool inlet size

= size of the tool’s air inlet. This value will help you select the correct size of connector.

2. Inlet type

expert article - air line accessories selection - icons - Tool inlet type

= type of thread on the tool air inlet. The three main types of pneumatic tool inlet threads are:



  • NPT (National Pipe Thread), mostly used in America,
  • PT (Pipe Thread), mostly used in Asia,
  • BSP (British Standard Pipe), mostly used in Europe.

Safety tip: To avoid any wrong connections or air leakage, never mix thread types.


3. Air compression as dynamic pressure

expert article - air line accessories selection - icons - Tool max air consumption

= the volume of compressed air required by the tool to work properly and efficiently. This value is given in cubic feet per meter (cfm) or in liters per second/minute (l/s or l/m).

4. Recommended hose diameter

expert article - air line accessories selection - icons - Hose recommended diameter

= while this isn’t typically classified as a tool value, tool manufacturers usually recommend the correct hose diameter to help ensure your tools perform at their best. The value is specified in millimeters (mm) and/or in inch (“).

Where to find the information?

Refer to the manufacturer’s recommendations online, to the tool print catalog or the operating manual.

Which factors matter for each type of accessory?

4 key tool values to consider when selecting air line accessories

By double-checking these four values, you will not only increase your tool’s efficiency but also reduce safety hazards in the workplace linked to air line installation failure. Enhance your installation safety by reading our air line installation guide and self-diagnostic check list.


“ Want to improve efficiency while ensuring safety? Double-check your compressed air line accessories first. ”

Annabelle Bray , Global Marketing Manager