Precise 5C Hex & Square Collet Block Chuck Set

• For standard 5C collets, 1/16 to 1-1/8" capacity.
• Overall Dimensions 2" x 2" x 3-1/2"
• For fast setups on lathes, milling machines, surface grinders and drill presses.
• These blocks will make 60o and 120o indexing a simple job
• Made of tool steel, hardened and ground square and parallel within .0005".