SCREW SHANK nails are typically used in dense materials and hardwoods. The spiral thread causes them to turn into the wood when driven for holding power. Commonly used in flooring, decking, siding, and pallet applications.

RING SHANK nails are typically used in soft woods. When driven, “rings” separate the wood fibers which cause the fibers to lock back into the “rings” providing excellent holding power. Commonly used in underlayment, decking, plywood, siding, and roofing applications.

A modified trigger valve that works by introducing and exhausting air from a mechanical valve or electrical solenoid valve, rather than using trigger actuation. This should only be used in mounted tool applications, where all necessary safety precautions are built in to the operation.

The bumper provides a cushioned stop for the piston/driver blade assembly and, through decompression, assists in returning the assembly to the start position.

Bump fire allows the tool to be cycled, as long as the trigger is depressed. True sequential fire requires that the trigger be released and the safety allowed to move back down into normal position, before the tool will cycle again.

Older tools have worn and the clearances between mating parts have increased and the safety springs have weakened. While the older tool may feel quicker, it also much less efficient.

Our recommendation would be to disassemble the main body of the tool, wipe out all sludge, oil and condensate and replace the o-rings and bumpers every 6 months. Trigger valve assemblies should be good for 12 months, before they will need replacement. Driver blades should be replaced when they have worn to the point that the blade extends less than 3/16″ out of the nose, it is chipped or the end has worn from flat to a severe angle. This is a good rule of thumb for tools used daily, during the work week.