Tech Talk
What is a "Spade Drill"?
A flat end-cutting tool, used to produce holes ranging from about 1' to 6' in diameter. Spade drills consist of an interchangeable cutting blade and a toolholder that has a slot into which the blade fits. In horizontal applications, a spade drill can achieve extreme depth-to-diameter ratios, but in vertical applications the tools are limited by poor chip evacuation.