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Pilot Hole Drilling Bit
Pilot Hole Drilling Bit
The Pilot Hole Drilling Bit is specifically designed to create precise pilot holes for screws and bolts in various materials including wood, plastic, and soft metals. This ensures a perfect fit, reduces splitting, and helps prevent damage to screws during installation.
Description
Pilot Hole Drilling Bit

| Item Code | Drill Diameter (d1) | Shank Diameter (d2) | Total Length (L1) | Flute Length (L2) | Recommended Drilling Depth (L3) | Shank Length (L4) |
| SP03C-0303 | 3.03 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0313 | 3.13 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0323 | 3.23 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0333 | 3.33 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0343 | 3.43 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0353 | 3.53 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0363 | 3.63 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0373 | 3.73 | 6 | 62 | 20 | 14 | 36 |
| SP03C-0383 | 3.83 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0393 | 3.93 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0403 | 4.03 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0413 | 4.13 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0423 | 4.23 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0433 | 4.33 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0443 | 4.43 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0453 | 4.53 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0463 | 4.63 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0473 | 4.73 | 6 | 66 | 24 | 17 | 36 |
| SP03C-0483 | 4.83 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0493 | 4.93 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0503 | 5.03 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0513 | 5.13 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0523 | 5.23 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0533 | 5.33 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0543 | 5.43 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0553 | 5.53 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0563 | 5.63 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0573 | 5.73 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0583 | 5.83 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0593 | 5.93 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0603 | 6.03 | 6 | 66 | 28 | 20 | 36 |
| SP03C-0613 | 6.13 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0623 | 6.23 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0633 | 6.33 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0643 | 6.43 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0653 | 6.53 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0663 | 6.63 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0673 | 6.73 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0683 | 6.83 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0693 | 6.93 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0703 | 7.03 | 8 | 79 | 34 | 24 | 36 |
| SP03C-0713 | 7.13 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0723 | 7.23 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0733 | 7.33 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0743 | 7.43 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0753 | 7.53 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0763 | 7.63 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0773 | 7.73 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0783 | 7.83 | 8 | 79 | 41 | 29 | 36 |
| Item Code | Drill Diameter (d1) | Shank Diameter (d2) | Total Length (L1) | Flute Length (L2) | Recommended Drilling Depth (L3) | Shank Length (L4) |
| SP03C-0793 | 7.93 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0803 | 8.03 | 8 | 79 | 41 | 29 | 36 |
| SP03C-0813 | 8.13 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0823 | 8.23 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0833 | 8.33 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0843 | 8.43 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0853 | 8.53 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0863 | 8.63 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0873 | 8.73 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0883 | 8.83 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0893 | 8.93 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0903 | 9.03 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0913 | 9.13 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0923 | 9.23 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0933 | 9.33 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0943 | 9.43 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0953 | 9.53 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0963 | 9.63 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0973 | 9.73 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0983 | 9.83 | 10 | 89 | 47 | 35 | 40 |
| SP03C-0993 | 9.93 | 10 | 89 | 47 | 35 | 40 |
| SP03C-1003 | 10.03 | 10 | 89 | 47 | 35 | 40 |
| SP03C-1013 | 10.13 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1023 | 10.23 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1033 | 10.33 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1043 | 10.43 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1053 | 10.53 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1063 | 10.63 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1073 | 10.73 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1083 | 10.83 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1093 | 10.93 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1103 | 11.03 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1113 | 11.13 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1123 | 11.23 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1133 | 11.33 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1143 | 11.43 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1153 | 11.53 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1163 | 11.63 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1173 | 11.73 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1183 | 11.83 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1193 | 11.93 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1203 | 12.03 | 12 | 102 | 55 | 40 | 45 |
| SP03C-1253 | 12.53 | 14 | 107 | 60 | 43 | 45 |
| SP03C-1273 | 12.73 | 14 | 107 | 60 | 43 | 45 |
| SP03C-1283 | 12.83 | 14 | 107 | 60 | 43 | 45 |
| SP03C-1303 | 13.03 | 14 | 107 | 60 | 43 | 45 |
| SP03C-1353 | 13.53 | 14 | 107 | 60 | 43 | 45 |
| SP03C-1403 | 14.03 | 14 | 107 | 60 | 43 | 45 |




Key Features
Precision Engineering: Accurately sized drill bits ensure optimal hole size for different screw diameters.
High-Quality Material: Made from high-speed steel (HSS) for superior durability and performance.
Versatile Use: Suitable for use with wood, plastic, and soft metals.
Efficient Cutting: Designed with efficient cutting edges that minimize heat build-up and extend bit life.
Easy Identification: Clearly marked shanks for quick identification of sizes.
Specifications
Drill Diameter Range: Available in a wide range of diameters from 3.03mm to 14.03mm.
Shank Diameter: 6mm, 8mm, 10mm, or 14mm depending on the drill bit diameter.
Total Length: Varies based on model, typically ranging from 62mm to 107mm.
Flute Length: Customized flute lengths to match recommended drilling depths.
Recommended Drilling Depth: Provided for each model to guide users on appropriate usage.
Applications
Ideal for professional contractors, DIY enthusiasts, and hobbyists who require accurate pilot holes for:
Furniture assembly
Cabinet making
Deck building
General woodworking projects
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