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The SECO 03030 is a parallel-style cutoff blade engineered for precision parting and grooving operations on lathes and turning centers. Manufactured from WKE45 cobalt high-speed steel with a bright finish, this blade delivers consistent cutting performance and edge retention in demanding metal-removal applications. It measures 8 inches in overall length, 1 inch in height, and 0.187 inches (4.76 mm) in width, making it well suited for applications requiring a narrow kerf and controlled chip flow. Machinists and tool and die professionals rely on this blade for its dimensional consistency and material toughness under interrupted cutting conditions.
This cutoff blade is used in production turning and manual lathe environments where accurate parting of bar stock, tubing, or workpieces is required. The parallel blade style maintains a consistent width from tip to shank, allowing for predictable tool pressure and repeatable cut depth. It is a standard choice in job shops, production floors, and maintenance machining operations handling ferrous and non-ferrous materials that benefit from cobalt-grade tooling.
Designed as an OEM-style replacement or standard tooling selection for parallel-slot cutoff and parting toolholders accepting blades with a 4.76 mm width, 25.4 mm height, and 203.2 mm length.
Installation should be performed by a qualified machinist with the machine powered off and locked out per applicable safety procedures. Secure the blade firmly in the toolholder to the manufacturer-specified clamping torque before operation. Inspect the blade for chips, cracks, or deformation before each use. Do not exceed the cutting parameters recommended for cobalt HSS tooling in your machining application.
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