
Product Details
LD-199 Forstner Drill Bit Set 6pc
LD-199 Forstner Drill Bit Set 6-piece provides HSS cutters for creating flat-bottom blind holes in wood, plywood, and MDF. Sizes 15mm to 50mm with 1/4 inch hex shank for cabinetry hinge boring and furniture making.
Core Features
- HSS cutting rim produces clean splinter-free entry in wood and veneer
- Center spur for precise hole starting prevents walking
- Flat-bottom design for concealed hinge and hardware seating
- 1/4 inch hex shank prevents spinning in drill chuck
- 6 sizes from 15mm to 50mm for common woodworking applications
- Yellow plastic storage case with indexed slots for organization
Application Scenarios
- Kitchen and bathroom cabinet hinge cup boring
- Furniture assembly dowel and connector hole drilling
- Shelf peg and support hole drilling
- Door hinge mortise preparation
- Wooden plug and counterbore drilling
- Model making and woodworking craft projects
FAQ
What is the difference between Forstner bits and spade bits for flat-bottom holes?
Forstner bits produce a cleaner flat-bottom hole with a smooth wall finish and a flat bottom, essential for hardware seating. They cut with a shearing action that minimizes tear-out. Spade bits cut faster but leave a rougher finish and can splinter the wood edges, especially on plywood.
Can Forstner bits be used in a drill press?
Yes, Forstner bits perform exceptionally well in drill presses, providing precise depth control and consistent hole quality. Use lower speeds (400-800 RPM for 15-35mm bits, 200-400 RPM for 50mm bits) and secure the workpiece firmly.
How do I prevent the bit from overheating?
Withdraw the bit periodically to clear chips from the cutting rim. Reduce drill speed for larger diameter bits. Apply moderate pressure without forcing. For deep holes, take multiple depth increments. Overheating dulls the HSS cutting edge and can burn the wood.
Can I sharpen Forstner bits?
Forstner bits can be sharpened by a professional sharpening service or with a specialized Forstner bit sharpening jig. The outer cutting rim and center spur can be touched up with a small diamond file. However, the complex geometry makes hand sharpening challenging.


