RGM Soft Grip Painting Knife #33 (Blue Handle) RGM Painting Knives from $5.87 $12.15 Qty. Add to Cart SKU: RGR033 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Length: 3 3/8" Width: 1 1/8" (68 1/2cm x 3cm). RGM Painting Knife Plus #33 with BlueRubber non-slip handle. Tweet