Description: 

The Superior Parts DB55-01 is a generic replacement Piston Driver/ Bumper kit that includes the SP CN81200C piston driver and SP MB55 piston bumper, compatible with Max CN55 Coil Nailer. Manufactured with our UNI-LOK technology that hydraulically crimps the grooves of the shaft to ensure the piston driver never unscrews. Drivers do not unscrew even at 80 N-M(59ft-lbs) during torque testing. The aluminum piston driver is heat treated to provide strength, durability and performance. The piston bumper is designed to protect nail guns from damage by absorbing piston driver firing shocks. Manufactured from durable PU material and precision machined for resistance, performance, and durability. A reliable replacement for OEM parts and highly recommended by Tradesman in the field.   

Features: 

• Kit includes the SP CN81200C Piston Driver and SP MB55 Piston Bumper, compatible with MAX CN55 Coil Nailer.  
• The piston driver is manufactured from Japanese Carbide SKH-9, lasts significantly longer than the US S7 steel.  
• Designed with our UNI-LOK technology that hydraulically crimps the grooves of the shaft to ensure the piston driver never unscrews. 
• The piston driver is heat treated to maintain strength and durability for excessive use and wear and tear. 
• Driver is annealed at the threaded end to lower the hardness and make the material more ductile for improved shock resistance. 
• Piston bumper is manufactured from durable P/U material and precision machined for resistance, performance, and durability.  
• All Superior Parts drivers are crimped at the aluminum base and can withstand a torque of 80 N-M (59ft-lb) before the aluminum shears off.   

Compatibility:

 Max 

• CN55  

Specifications:  

• Material: Premium Grade Aerospace #2024 Aluminum, Japanese Carbide Steel Tip, Polyurethane Bumper 
• Hardness: 64-66 HRC