Jiangsu Xingrui Precision Tools Co., Ltd.
| Size | 1/4“-1-3/8” |
| Surface Finish | Painted & Bright |
| name | Wood Quad Auger Drill Bi |
| Payment Terms | L/C, T/T, D/P, Western Union |
| Supply Ability | 20000PCS PER DAY |
| Delivery Time | 25-30 days |
| Packaging Details | Each item will be transparent plastic box |
| Use | Speed Feed Wood Drilling |
| Type | Twist Drill Bit |
| Material | High Carbon Steel with Heat Treatment |
| Shank | Round Shank |
| Color | Color Painting |
| Brand Name | XRTOOLS |
| Model Number | 1/4“-1-3/8” |
| Certification | ISO9000 |
| Place of Origin | CHINA |
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Product Specification
| Size | 1/4“-1-3/8” | Surface Finish | Painted & Bright |
| name | Wood Quad Auger Drill Bi | Payment Terms | L/C, T/T, D/P, Western Union |
| Supply Ability | 20000PCS PER DAY | Delivery Time | 25-30 days |
| Packaging Details | Each item will be transparent plastic box | Use | Speed Feed Wood Drilling |
| Type | Twist Drill Bit | Material | High Carbon Steel with Heat Treatment |
| Shank | Round Shank | Color | Color Painting |
| Brand Name | XRTOOLS | Model Number | 1/4“-1-3/8” |
| Certification | ISO9000 | Place of Origin | CHINA |
| High Light | industrial wood drill bit ，industrial long drill bits for wood ，flat wood drill bit | ||
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.
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 |
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.
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.
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.
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.
Cabinetry & Furniture: Precision boring for concealed "Cup" hinges (35mm/1-3/8") and adjustable shelf pins.
Hardware Installation: Creating clean recesses for locks, bolts, and specialized furniture fittings.
Joinery: Overlapping holes to create mortises or large-diameter pockets for dowels.
Renovation: Clean through-holes for piping or electrical wiring in finished wood surfaces.
Professional Storage Case: Bits are organized in a high-impact ABS or wooden indexed case, preventing edge damage during transit.
Bulk Wholesale: Moisture-proof inner boxes and reinforced export cartons palletized for international sea and rail freight.
OEM Customization: High-precision Laser Marking for brand logos and fractional/metric sizes directly on the shank.
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.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2008
Total Annual:
500-600
Employee Number:
30~50
Ecer Certification：
Verified Supplier
Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in YangZhou, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We special...
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