Flexcut Draw Knife with Sheaf KN16Flexcut Draw Knife with Sheaf KN16 The Flexcut Drawknife has 125mm(5") of workable edge and is designed to flex around contours where large amounts of stock need to be removed. It can be curved to accommodate concave or convex curves, allowing it to conform more closely to the required contour. Just the job for chair legs, chair bottoms or roughing out decoys. Razor sharp from new.