Massive professional guide bar for high-powered machines. Very high cutting yield. The massive and particularly rigid bar body is milled and filled with aluminium, resulting in a weight saving of over 30%. The reduced weight improves the balance of the chainsaw and reduces operator fatigue.Fully replaceable bar head.Like all STIHL bars, this version is also made of high-quality chrome-molybdenum steel.Main uses: felling and cutting in forestry work. Also for hardwood and large diameter logs.Models: MS 290, MS 382, ??MS 440, MS 441, MS 460, MS 461, MS 462, MS 500i, MS 650, MS 660, MS 661