#23 Flat Twin Blade. #14 Flat Blade, w/ Notch, 1.00mm x 18.0mm. #06 Flat Twin Blade – 1.55mm x 17.0mm. #22 Pick Blade, 1.00 mm x 19.0mm. #21 Flat Twin Blade, 0.90mm x 15.0mm. #20Twin Blade, 1.60mm x 20mm.