Precision 8-Piece Forstner Bit Set (1/4" - 1-3/8") | Industrial High Carbon Steel Wood Boring Tool Kit | Flat-Bottom Hinge Cutter with Heavy-Duty Indexed Storage Case for Cabinetry & Joinery
1. Product Overview
Our 8-Piece Professional Forstner Bit Set is the definitive solution for craftsmen requiring clean, flat-bottomed, and splinter-free holes in wood. Crafted from high-grade High Carbon Steel (HCS) and precision-ground for exact tolerances, these bits are engineered to drill into softwoods, hardwoods, and veneered sheets without the "walking" or tearing common with standard bits.
Presented in a heavy-duty indexed storage case, this set is designed for professional cabinet makers, furniture installers, and hardware distributors who prioritize tool longevity and organizational efficiency.
2. Technical Specifications & Size Chart
Each bit is forged from a single piece of steel and vacuum-heat-treated to maintain edge sharpness across hundreds of boring cycles.
| Imperial Size | Metric Equivalent (Approx.) | Total Length (L1) | Working Depth (L2) | Shank Type |
| 1/4" | 6.35 mm | 90 mm | 60 mm | Round Shank |
| 3/8" | 9.5 mm | 90 mm | 60 mm | Round Shank |
| 1/2" | 12.7 mm | 90 mm | 60 mm | Round Shank |
| 5/8" | 15.8 mm | 90 mm | 60 mm | Round Shank |
| 3/4" | 19.0 mm | 90 mm | 60 mm | Round Shank |
| 7/8" | 22.2 mm | 90 mm | 60 mm | Round Shank |
| 1" | 25.4 mm | 90 mm | 60 mm | Round Shank |
| 1-3/8" | 35.0 mm | 90 mm | 60 mm | Round Shank |
3. Engineering Excellence & Key Advantages
Precision Center Spur
Each bit features a sharpened centering point that bites into the wood instantly. This ensures the bit stays exactly on your mark, allowing for overlapping holes or boring on the edge of a workpiece—critical for intricate joinery.
Dual-Peripheral Cutting Rims
The specialized "saw-tooth" or "continuous rim" geometry shears wood fibers at the edge of the hole before the main cutters remove the waste. This results in "Zero-Splinter" entry and exit, even on delicate melamine, plywood, or thin veneers.
Flat-Bottom Boring Geometry
Engineered to produce a perfectly flat base, these bits are essential for installing concealed hinges (the 35mm/1-3/8" bit is the industry standard for European hinges) or creating clean recesses for fasteners.
Optimized Heat Dissipation
The high-clearance flute design and polished surface reduce friction. This prevents the "burning" of wood fibers, which is especially important when working with resin-heavy hardwoods or dense MDF.
4. Professional Applications
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Cabinetry & Furniture: Precision boring for concealed "Cup" hinges (35mm/1-3/8") and adjustable shelf pins.
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Hardware Installation: Creating clean recesses for locks, bolts, and specialized furniture fittings.
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Joinery: Overlapping holes to create mortises or large-diameter pockets for dowels.
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Renovation: Clean through-holes for piping or electrical wiring in finished wood surfaces.
5. Packaging & Global Logistics
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Professional Storage Case: Bits are organized in a high-impact ABS or wooden indexed case, preventing edge damage during transit.
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Bulk Wholesale: Moisture-proof inner boxes and reinforced export cartons palletized for international sea and rail freight.
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OEM Customization: High-precision Laser Marking for brand logos and fractional/metric sizes directly on the shank.
6. FAQ (Frequently Asked Questions)
Q: Can these bits be used in a hand-held drill?
A: Yes, they can be used in hand-held power drills, though a Drill Press is recommended for the largest sizes (1" and above) to ensure maximum precision and safety.
Q: Are these suitable for hardwoods like Oak or Walnut?
A: Absolutely. Our High Carbon Steel is vacuum-tempered specifically to handle the density of hardwoods. For the longest life in hardwoods, we recommend a moderate RPM to manage heat.
Q: What is the maximum drilling depth for this set?
A: The standard working depth is approximately 60mm (2-3/8"). For deeper holes, bit extensions are available.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.