• Holds standard 5C collets
• Economical indexing for 2, 3, 4, and 6 divisions
• Easy cross drilling at 60°, 90° and 120°
• Made of hardened tool steel
• Ground square and parallel within 0.0005" all over

This set includes five pieces, the square block, the hexagonal block, two quick acting rings and the lever operated collet closer.