What is the benefit of a split point drill bit? Split point drill bits are better suited to drilling through harder materials, such as aluminium and steel, due to the flatter point angle – on a standard drill bit this is 118 degrees, however on a split point drill this is around 132 degrees. The flatter point is ideal for drilling accuracy and stability, meaning it needs less cutting force. Additionally, split point drills are self – centering so don’t need pre-drilling.