Blade-holder head for a cutting machine of textile or cloth materials, comprising: - first blade guide means suitable for supporting a cutting blade with the possibility of alternate movement along a blade axis, said first blade guide means having a plurality of contact points with the blade distanced along said blade axis; - a guide support body, to which said first blade guide means are attached; - a presser disc connected underneath said support body with the possibility of alternate axial shifting, said presser disc supporting second blade guide means aligned with said first blade guide means; - a command unit mounted on an upper crosspiece of the guide support body and comprising: - a rotor body suitable for rotating around a rotation axis parallel to said blade axis, - a stationary outer sleeve, placed coaxially around said rotor body with the interposition of friction reduction means, suitable for permitting the rotation of the rotor body in relation to the outer sleeve; the blade-holder head being provided with a lubrication circuit suitable for lubricating the cutting end of the blade, the blade-holder head being characterised in that said lubrication circuit comprises: - an entrance hole made in the stationary outer sleeve and suitable for coupling to a lubricant inlet fitting; - a hermetically sealed annular lubrication chamber made in the outer sleeve in fluidic communication with said entrance hole; - a first lubrication duct made in the rotor body and in fluidic communication with said annular chamber; - a second lubrication duct in fluidic communication with said first duct and extending through the guide support body and - a third lubrication duct made in the presser disc in fluidic communication with said second duct and coming out next to the cutting end of the blade. - first blade guide means suitable for supporting a cutting blade with the possibility of alternate movement along a blade axis, said first blade guide means having a plurality of contact points with the blade distanced along said blade axis; - a guide support body, to which said first blade guide means are attached; - a presser disc connected underneath said support body with the possibility of alternate axial shifting, said presser disc supporting second blade guide means aligned with said first blade guide means; - a command unit mounted on an upper crosspiece of the guide support body and comprising: - a rotor body suitable for rotating around a rotation axis parallel to said blade axis, - a stationary outer sleeve, placed coaxially around said rotor body with the interposition of friction reduction means, suitable for permitting the rotation of the rotor body in relation to the outer sleeve; - an entrance hole made in the stationary outer sleeve and suitable for coupling to a lubricant inlet fitting; - a hermetically sealed annular lubrication chamber made in the outer sleeve in fluidic communication with said entrance hole; - a first lubrication duct made in the rotor body and in fluidic communication with said annular chamber; - a second lubrication duct in fluidic communication with said first duct and extending through the guide support body and - a third lubrication duct made in the presser disc in fluidic communication with said second duct and coming out next to the cutting end of the blade.