Intenz Chain Saw BarBar design allows user to adjust the tension of the chain without removing the bar cover from the saw. User simply inserts a screwdriver into the tension adjustment and tightens on with the correct bar.No. 14S52041: 14 bar, matches bar chain combo model No. 27856 and chain model No. S52No. 16S560413: 16 bar, matches bar chain co..