Spiral router bit Finishing VHM Z2 D4 I15 L60 S6 RH negative

Two-flute solid carbide spiral end mill 4x15 mm from the SB51 series – ideal edge quality and high performance

Index: SB51.04.015.060.06R

A high-performance spiral end mill made from a solid carbide monolith (VHM) from the SB51 line, intended for precise cutting, shaping, grooving, and slotting on overhead spindle milling machines and CNC centres. The tool features two-flute spiral geometry in a Z2 negative configuration, which forces effective chip removal downwards. The use of high-quality micro-grained carbide ensures high wear resistance and significantly extends the life of the cutting edge. The ground shank in tolerance class H6 eliminates radial runout, protecting the spindle bearing assembly and guaranteeing an excellent finishing standard for the machined material.

Construction advantages and technical properties:

• Finishing geometry 2 (downward cutting): Two cutting edges directing the chips downward ensure a clean top edge of the machined raw material and effectively prevent the lifting of veneer or laminate.
• Premium solid carbide monolith (VHM): The rigid, monolithic construction prevents deformation of the end mill during operation under high force, allowing for tight dimensional tolerances.
• Possibility of applying a PVD coating: The option to apply protective layers (including TiSiN or PLATINIUM) allows for multiple extensions of the edge life, reduces friction, and protects against overheating.
• Low roughness of the shank: Shank surface with a roughness indicator of Ra ≤ 0.3 µm protects the mill from rotating in the holder and eliminates the risk of wearing the cone in the spindle.
• Dynamic balancing to G2.5 standard: Certified static-dynamic balancing in an enhanced G2.5 class (according to ISO/EN) reduces noise and vibrations generated at high speeds (up to 18,000 RPM).

Application and range of use:

The tool is intended for cutting, contour milling, grooving, slotting, and edge finishing operations.

It performs excellently in processing materials such as: soft and hard wood, raw and laminated MDF board, raw and laminated plywood, and raw and laminated particle board.