Value Collection 460-1148 M35 Cobalt Tool Bit Blank 3/4x3/4x5

Product Description

The VALUE COLLECTION 460-1148 is a square tool bit blank machined from M35 cobalt high-speed steel. It measures 3/4 inches wide by 3/4 inches high with a 5-inch overall length. Blanks like this are ground-to-spec by machinists and tool grinders to create custom single-point lathe tools, boring bars, and specialty cutting profiles. The M35 grade adds roughly 5 percent cobalt to the high-speed steel matrix, improving hot hardness and wear resistance for cutting harder workpiece materials at elevated temperatures. This blank ships unground, ready for custom shaping on a bench grinder or surface grinder.

Square tool bit blanks in this size are standard stock for manual lathes, turret lathes, and small CNC turning centers that use square-shank toolholders. They are commonly used in job shops, maintenance departments, and training environments where machinists need to grind their own tool geometry. The 3/4-inch cross-section fits tool posts and holders sized for that shank dimension. M35 cobalt blanks are well-suited for interrupted cuts and tougher alloys where standard M2 high-speed steel loses its edge prematurely.

Key Features

• M35 cobalt high-speed steel construction for improved hot hardness over standard M2 HSS
• Square cross-section at 3/4 inches x 3/4 inches fits standard square-shank toolholders
• 5-inch overall length provides sufficient stock for multiple regrinds over the tool life
• Unground blank allows custom geometry to be shaped to the specific application
• Consistent cross-section dimensions support accurate seating in tool posts

Compatibility

Designed for use in manual and turret lathes equipped with square-shank toolholders accepting a 3/4-inch tool bit.

Installation Notes

Tool bit blanks are ground to final geometry by a qualified machinist using a bench grinder or surface grinder with appropriate wheel dressing. Secure the blank firmly in a tool grinding fixture or vise before grinding to maintain accurate angles. Always wear eye protection and follow shop safety protocols when grinding high-speed steel. Inspect the finished tool for cracks or chips before mounting in the lathe tool post.