Z3 Wing Configuration
Three cutting wings distribute drilling load to support balanced rotation and clean surface entry in production materials.
Leitz Premium Left-Hand Dowel Drill Bit 35mm x 70mm 3-Tooth
CA$999.99
In stock
SKU
L37280
Product Type
Premium Industrial HBLH Dowel Drill Bit
Diameter
35 mm
Working Length
70 mm
Rotation
Left-Hand (LH) / HBLH Specification
Number of Wings
Z=3 (3 Cutting Edges)
Article Number
L37280
Construction
Premium Grade Carbide Tipped
Application
Tear-free blind hole boring in solid wood,MDF,particleboard,and laminated panels
Premium HBLH Dowel
Drill Bit
HBLH Dowel Drill Bit
Industrial tungsten-carbide dowel and hinge boring bit engineered for automated panel processing. Its Z3 cutting-wing geometry, left-hand HBLH configuration, and aggressive axial-shear design support clean blind-hole machining and stable high-feed production.
D=35 mmCutting Diameter
L=70 mmWorking Length
Z=3Cutting Wings
LH / HBLHRotation Setup
HBLH Dowel Drill Bit
This heavy-duty industrial boring tool combines three carbide cutting wings with left-hand rotation and controlled axial shear for accurate hole production in dense sheet goods.
Tungsten CarbideZ3 Cutting WingsLeft-Hand HBLHSKU L37280
Designed for compatible CNC boring blocks and thru-feed gang drills using a standard industrial cylindrical shank with flat and left-hand spindle configuration.
Main Product Description
The Leitz Premium HBLH Dowel Drill Bit L37280 is designed for high-volume automated panel manufacturing. Its three-wing Z3 cutting geometry distributes cutting load across multiple edges, helping reduce chip load per wing and support stable drilling in dense composite materials.
Premium-grade tungsten-carbide cutting edges provide wear resistance under repeated production cycles. The left-hand HBLH geometry combines specialized clearance angles with deep chip-evacuation paths to move waste away from blind holes and reduce recutting, heat buildup, and friction marks.
With a 35 mm cutting diameter and 70 mm working length, this bit is suited to hinge-hole preparation, dowel boring, cabinet-component machining, and architectural millwork. The cylindrical shank with flat supports secure engagement in compatible CNC boring blocks and thru-feed gang-drill systems.
Technical Specifications
HBLH Dowel Drill Bit L37280
- Leitz Premium Industrial
- High-End Dowel & Hinge Drill Bit
- L37280
- Premium Industrial Boring
- Z3 (3 Cutting Wings)
- 35 mm
- 70 mm
- LH / Left Hand (HBLH)
- Premium Grade Tungsten Carbide
- ISO G2.5 Coaxial Verification
- Standard Industrial Cylindrical Shank with Flat
- Aggressive Axial Shear Angle
- Substrate Fitment: MDF, Particleboard, Laminated Melamine, Plywood · Machine Interface: CNC Boring Blocks, Thru-Feed Gang Drills · Production Tier: Heavy-Duty High Production
- Designed for compatible CNC boring blocks and thru-feed gang drills using a standard industrial cylindrical shank with flat and left-hand spindle configuration.
Best Fit Applications
Automated CNC Line Boring
Hinge-Hole Preparation
Melamine Panel Processing
Dense Plywood Boring
High-Volume Cabinet Production
Product Highlights
HBLH Left-Hand Geometry
The left-hand configuration is designed for compatible multi-spindle boring blocks and continuous automated drilling cycles.
Advanced Axial Shear
Controlled shear geometry slices through melamine, MDF, particleboard, and plywood while helping reduce face fracture.
Compatibility & Installation Notes
Isolate the machine before installation or servicing. Confirm that the spindle and boring block accept a 35 mm left-hand HBLH tool with the supplied cylindrical shank-and-flat configuration. Verify secure clamping, correct rotation, operating speed, feed rate, and drilling depth before production. Inspect chip-clearance channels regularly to prevent debris packing during deep blind-hole cycles.
Increase Automated Boring Stability
The Leitz Premium HBLH Dowel Drill Bit L37280 is designed for high-capacity manufacturers using automated boring infrastructure. Its 35 mm diameter, 70 mm working length, Z3 cutting-wing layout, and left-hand HBLH geometry support stable hole production across dense composite panels and solid-core materials.
Precision clearance angles, axial-shear geometry, and carbide cutting edges help reduce entry fracture, control spindle load, and extend service intervals during continuous cabinet and architectural-millwork production.