Ind-sphinx Precision Ltd. Supplies Spade Drills made of Solid Carbide. Ind-sphinx Precision Ltd; an ISO 9001 certified company also supplies products like Machine Tools, Drilling Machines, Rubber Coated Fabrics, Boring Heads, Reamers, Drills etc.Spade Drills made of Solid Carbide are a two part drill with a tool holder and an insertable tip, called an insert. The Spade Drills made of Solid Carbide are used for Spot drilling and very shallow holes in thin materials. The Spade Drills made of Solid Carbide are available in both left hand cut and right hand cut.