There are two principal parts to a Spade Drill, namely the blade and the holder. The holder has a slot into which the blade first, a wide slot at the back of the blade engages with a tongue in the holder slot to accurately locate the blade. A retaining screw holds the two parts together. Standard stub, short, long and extra long holders are available, for every deep holes, special holders having wear strips to support and guide the drill are often used. Spade drills can be given with holders having coolant holes to direct cutting fluid, under pressure, to the cutting edge.

There are two principal parts to a Spade Drill, namely the blade and the holder. The holder has a slot into which the blade first, a wide slot at the back of the blade engages with a tongue in the holder slot to accurately locate the blade. A retaining screw holds the two parts together. Standard stub, short, long and extra long holders are available, for every deep holes, special holders having wear strips to support and guide the drill are often used. Spade drills can be given with holders having coolant holes to direct cutting fluid, under pressure, to the cutting edge.