Spiral router bit Finishing VHM Z2 D8 I22 L70 S8 RH negative

Two-flute solid carbide spiral end mill 8x22 mm from the SB51 series – ideal edge quality and high performance

Index: SB51.08.022.070.08R

A high-performance spiral end mill made from solid sintered carbide (VHM) from the SB51 line, designed for precise cutting, profiling, grooving, and notching on vertical spindle milling machines and CNC centres. The tool utilises a two-flute spiral geometry in a Z2 configuration with a negative layout, which facilitates efficient chip removal downwards. The use of high-grade micro-grain carbide ensures high resistance to abrasive wear and significantly extends the cutting edge's lifespan. The ground shank with a tolerance class of H6 eliminates radial runout, protecting the spindle bearing system and guaranteeing an excellent finish standard of the machined material.

Design advantages and technical properties:

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

Application and scope of use:

The tool is intended for cutting operations, peripheral milling, grooving, notching, and finishing edge processing.

It performs excellently in the machining of materials such as: soft and hard wood, raw and laminated MDF boards, raw and laminated plywood, and raw and laminated particle boards.