Trend 46/06X1/4TC Combi trimmer 24 mm diameterCombi trimmerA self-guided combination trimmer. A 90 degree trim is obtained by engaging the bottom half. A 45 degree trim is obtained by lowering the cutter. A fine height adjuster is recommended when using this cutter. A larger 20mm bearing will spread the wear of the cutting when 45 degree trimming.Specification-D=24 mmC=6 mmC2=5 mmC3=6 mmB=Fractionally larger than cutter diaA=90 deg., A2=45 deg.Shank Diameter=1/4 inch