Professional bar adapters from Mike Manley. These bar adapters allows you to run 12mm Stihl mount chainsaw bars on many Husqvarna chainsaws ( D009 mount) This is great for those operators who run both brands of saws, because you only need one type of bar now, one with a 12mm Stihl mount. The bar plate adapter will fit saws with 9mm studs approximately 1-3/4" (44mm) apart. Please check your saw before ordering. Important Note: Not all bar mounts are manufactured the same. Some bars may require adjuster holes to be slightly enlarged for bar adjuster tab to fit.