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The SECO 63005183 is a rectangular cobalt tool bit blank designed for use in custom tooling applications where machinists grind their own cutting geometry. Made from WKE45-grade cobalt high-speed steel, this blank measures 0.25 inches wide by 0.5 inches high with an overall length of 6 inches. The cobalt content in WKE45 provides superior heat and wear resistance compared to standard M2 high-speed steel, making it well suited for machining harder materials at elevated cutting temperatures. Machinists and tool-and-die professionals use blanks like this as the starting stock for form tools, threading tools, and other specialty single-point cutting tools.
This tool bit blank is intended for use in manual and CNC lathe operations, screw machine shops, and tool rooms where shop-ground tooling is standard practice. It is appropriate for machining alloy steels, stainless steels, cast iron, and other materials that benefit from the elevated hot hardness of cobalt HSS. The rectangular profile fits standard tool holders and lantern-style tool posts common in engine lathe setups. It ships individually and is sold in a minimum quantity of one piece.
Designed as a shop-ground tool bit blank for use in standard tool holders and tool posts that accept 0.25 inch by 0.5 inch rectangular HSS blanks on engine lathes and screw machines.
Grinding of this blank should be performed by a qualified machinist using appropriate wheel specifications for cobalt HSS stock. Eye protection and proper ventilation are required during grinding operations. Ensure the machine spindle is fully stopped and all energy sources are locked out before installing any ground tool bit in a tool holder. Follow applicable shop safety standards when handling and storing HSS cutting tools.
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