Clean Entry Geometry
Two V-shaped scoring spurs establish the hole perimeter before the main cutting edges remove material.


High-performance carbide boring bit engineered for precision hole processing in industrial cabinet, millwork, and panel-production environments. Its Z2 cutting geometry and dual V-spur configuration support clean entry, smooth hole walls, and repeatable right-hand boring performance.
This industrial boring tool combines carbide cutting edges, two primary cutting teeth, and two scoring spurs for accurate hole production in solid wood and wood-based panels.
Designed for compatible CNC boring machines, line-boring systems, and drilling aggregates configured for right-hand rotation and the required mounting interface.
The Leitz Premium Boring Bit L34677 is designed for production-scale cabinetry, millwork, and panel machining where clean, accurately sized holes are required. Its 40 mm cutting diameter and 54.5 mm total length provide a compact, stable geometry for repeatable boring operations.
The Z2 cutting arrangement works with two V-shaped scoring spurs to establish a clean hole perimeter before the central cutting edges remove the core material. This geometry helps reduce entry breakout and supports smooth hole walls in solid wood and composite panel products.
Industrial-grade carbide cutting edges provide wear resistance for high-duty-cycle production. Correct spindle alignment, toolholding pressure, rotation direction, feed settings, and dust extraction help maintain dimensional accuracy and extend useful service life.
Technical Specifications
Two V-shaped scoring spurs establish the hole perimeter before the main cutting edges remove material.
The two-tooth arrangement distributes cutting load evenly to support smooth boring and consistent hole quality.
Industrial carbide cutting edges help preserve geometry and dimensional accuracy during repeated production cycles.
Confirm that the machine spindle, chuck, or boring aggregate accepts the required mounting interface and right-hand rotation. Verify spindle alignment, toolholding pressure, operating speed, feed rate, and drilling depth before production. Inspect the carbide edges and scoring spurs for wear, damage, or resin buildup, and use effective dust extraction during machining.
The Leitz Premium Boring Bit L34677 is built for cabinet shops, millwork manufacturers, and panel-processing lines requiring clean, repeatable 40 mm holes. Its 54.5 mm total length, Z2 cutting geometry, V2 scoring-spur arrangement, and right-hand rotation support consistent boring on compatible equipment.
Combining controlled scoring action with carbide wear resistance, this boring bit helps reduce edge breakout, preserve hole-wall quality, and maintain production accuracy across repeated drilling cycles.