ER40 Hex Collet Block (approx. 50 x 75 mm) and ER40 Square Collet Block (approx. 45 x 80 mm) are precisionengineered tools designed for reliable clamping and accurate machining operations. Built to meet performance demands, these collet blocks deliver consistent alignment and positioning for professional workshop use. Key Features: Two shapes included: Hex block for 6sided indexing and Square block for 4sided indexing Precision made from hardened tool steel for maximum durability and wear resistance Ground to 0.0005 inch flatness, squareness, and parallelism for exceptional accuracy Silver finish with black accents for sleek, professional appearance Throughhole design accommodates long workpieces, enabling versatile machining setups Benefits: Ensures precise and repeatable positioning for milling, drilling, grinding, and other machining tasks Compatible with ER40 collets, allowing quick changes between workpieces and minimizing downtime Strong construction reduces deformation and ensures a stable hold even under heavy machining loads Common Applications: 1. Ideal for holding round, square, or hex stock securely during milling or grinding operations 2. for repeat production runs where consistent part alignment is critical 3. Suitable for machining long shafts, rods, or tubing by utilizing the throughhole for extended lengths By combining robust materials, tight tolerances, and versatile design, the ER40 Hex and Square Collet Blocks provide machinists with reliable workholding solutions that maintain accuracy and efficiency in a wide range of manufacturing processes.