01. How does the tool work?

02. How much power does the tool have?

03. Can I bump fire the tool?

04. How fast can I drive nails?

05. Is there a delay after pulling the trigger?

06. How do I adjust how deep nails are set?

07. Can I use the tool at high altitudes?

08. Can I use the tool in cold weather?

09. Can I use the tool in hot weather?

10. What is included with the tool?

11. Will Grex develop other cordless nailers and staplers?

12. What is the warranty on the tool?


13. Do I have to use Grex branded nails?

14. What type of nails does this tool shoot?

15. Can I slight headed pins?

No. Do not use 23 gauge slight headed pins. Your Grex pinners are designed to only drive headless pins. When we developed our first pinner over 10 years ago, our testing showed that a tool that drives both headless and slight headed pins had a significantly higher risk of jamming which eventually resulted in tool damage. The reason is the looser tolerances required to accomodate both types of fasteners. So we decided to use purely headless pins. Holding power of a fastener comes from friction along the fastener shank and a combination of toeing and/or angling shots; not the head. And if you want to use a 23 gauge fastener because of the small hole it leaves, then why put a head on it to make it bigger?


16. Does the tool come with fuel cartridges?

17. Can I use other company’s fuel cells?

18. Why is there no odor like other gas tools?

19. How many shots can I get from a fuel cartridge?

20. Is less fuel used when I adjust to lower power?

21. Do the fuel cartridges have expiration dates?

22. What is the number on the bottom of the can?

23. Can I leave the fuel cartridge in the tool?

24. How should I store the fuel cartridges?

25. How do I dispose of the fuel cartridges?

26. Is the Fuel cartridge recyclable?


27. How can the tool only use AAA batteries?

28. Why not use AA batteries?

29. Does the tool come with batteries?

30. Can I use rechargable batteries?

31. How many shots can I get from a set of batteries?


32. What kind of maintenance is involved?

33. Why don’t I need to clean the tool regularly like other gas nailers?