Our 20” .325” Pitch, .050” Gauge Guide Bar is designed with a durable multi-rivet nose and 12-tooth design to withstand tough bore cutting applications. The narrow kerf bar offers more cuts per charge versus standard kerf bars to maximize battery efficiency. This bar is recommended for use with our M18 FUEL™ 20” Dual Battery Chainsaw (2827-22) and 20" .325" Pitch, .050" Gauge Saw Chain (49-16-2752) and fits chainsaws with a K095 Tail Mount & 20" narrow kerf chains with the same pitch, gauge, and drive links