The round handle of these awls let you use an alternate grip for sewing and more leverage for pushing the blade through leather. These whole body awls additionally have their blades integrated into the shaft of the handle extending up to the round grip.
Diamond Blade Variation
Dimensions: 2mm wide, 1mm thick, ~24mm long
Blade shape is flat with a bungle in the center to create the diamond shape but without the sharp corners along the shorter diameter.