Our 12" .325" Low Profile Pitch, .043" Gauge Guide Bar is durable and lightweight for easy maneuvering and accurate cuts. The narrow kerf bar offers more cuts per charge versus standard kerf bars to help maximize battery efficiency. This bar is recommended for use with our M18 FUEL™ 12" Top Handle Chainsaw (2826-20) and 12" .325" Low Profile Pitch, .043" Gauge Saw Chain (49-16-2742) and fits chainsaws with an A041 tail mount & narrow kerf chains of the same pitch, gauge, length, and drive links.