Thanks - much appreciated
no the 57 teeth chain will not fit your saw but they do also make 56 teeth chains
Would you happen to know if your suggestion is compatible with the blades that I normally use? I ask as yours has 57 teeth and the ones that I use have 56. https://www.ebay.co.uk/itm/Oregon-91PJ056X-91PJO56X-Chain-for-Screwfix-Titan-TTL632CHN-Petrol-Chainsaw/173582364385
Given that a new blade costs £11.99 (eBay item 173582364385) or less (£18.95 for 3 as above), it's just not worth it IMO. I don't get on with the electronic sharpeners. I use a hand sharpener to touch up the blade a few times then replace the blade.
It is likely because the cutters on the left and right are slightly different lengths. All cutters should be sharpened to the length of the shortest tooth so you nearly need to measure using a Vernier caliper. It's a real chore as I'm always chipping teeth on wire.