Product Description:
The drill body is the primary structural component of a drill bit, which excludes the cutting edge and the shank. It serves to support the cutting section, transmit drilling force, and aid in chip removal while in operation.
Typically, the drill body incorporates various elements such as flutes for chip evacuation, margins for guidance, and a core for strength. Some designs also feature coolant channels to enhance drilling efficiency and tool longevity.
Common materials used for drill bodies include high-speed steel (HSS) , carbide , and coated alloys . The drill body plays a vital role in preserving stability, accuracy, and performance throughout the drilling processes.
Features:
Key Features
- Spiral Flutes: Efficient chip removal and smooth drilling.
- Strong Core: Ensures structural rigidity and reduces breakage.
- Precision Margins: Improve hole accuracy and reduce vibration.
- Optional Coolant Channels: Enhance heat dissipation in high-speed drilling.
Main Advantages
- Stable Performance: Maintains alignment during drilling.
- High Durability: Made from wear-resistant materials like HSS or carbide.
- Versatile Design: Suitable for various materials and machining environments.
- Improved Productivity: Supports higher cutting speeds and longer tool life.
Technical Parameters:

| Order Code | Lc mm | L4 mm | L5 mm | d mm | Seat size | Dc | Dc max | | EP-G88105-125-B16 EP-G88105-13-B16 EP-G88105-135-B16 EP-G88105-136-B16 EP-G88105-14-B16 | 80 80 80 | 90 90 90 | | 48 | 16 | C | 12.50 | 13.00 | | 48 | 16 | C | 13.00 | 13.50 | | 48 | 16 | C | 13.50 | 13.50 | | 86 86 | 95 | 48 | 16 | B | 13.51 | 14.00 | | 95 | 48 | 16 | B | 14.00 | 14.50 | | EP-G88105-145-B20 | 86 | 95 | 48 | 20 | B | 14.50 | 14.50 | | EP-G88105-146-B20 | 94 | 105 | 50 | 20 | A | 14.51 | 15.00 | | EP-G88105-15-B20 | 94 | 105 | 50 | 20 | A | 15.00 | 15.50 | | EP-G88105-155-B20 | 94 | 105 | 50 | 20 | A | 15.50 | 15.87 | | EP-G88105-16-B20 | 105 | 117 | 50 | 20 | 1 | 15.88 | 17.00 | | EP-G88105-17-B20 | 105 | 117 | 50 | 20 | 1 | 17.00 | 18.00 | | EP-G88105-18-B20 | 105 | 117 | 50 | 20 | 1 | 18.00 | 18.00 | | EP-G88105-181-B25 | 119 | 134 | 56 | 25 | 2 | 18.01 | 19.00 | | EP-G88105-19-B25 | 119 | 134 | 56 | 25 | 2 | 19.00 | 19.99 | | EP-G88105-20-B25 | 130 | 144 | 56 | 25 | 3 | 20.00 | 21.00 | | EP-G88105-21-B25 | 130 | 144 | 56 | 25 | 3 | 21.00 | 22.00 | | EP-G88105-22-B25 | 130 | 144 | 56 | 25 | 3 | 22.00 | 22.00 | | EP-G88105-221-B25 | 142 | 155 | 56 | 25 | 4 | 22.01 | 23.00 | | EP-G88105-23-B25 | 142 | 155 | 56 | 25 | 4 | 23.00 | 24.00 | | EP-G88105-24-B25 | 142 | 155 | 56 | 25 | 4 | 24.00 | 24.00 | | EP-G88105-241-B32 | 157 | 175 | 60 | 32 | 5 | 24.01 | 25.00 | | EP-G88105-25-B32 | 157 | 175 | 60 | 32 | 5 | 25.00 | 26.00 | | EP-G88105-26-B32 | 157 | 175 | 60 | 32 | 5 | 26.00 | 26.00 | | EP-G88105-261-B32 | 167 | 184 | 60 | 32 | 6 | 26.01 | 27.00 | | EP-G88105-27-B32 | 167 | 184 | 60 | 32 | 6 | 27.00 | 28.00 | | EP-G88105-28-B32 | 167 | 184 | 60 | 32 | 6 | 28.00 | 28.00 | | EP-G88105-281-B32 | 178 | 194 | 60 | 32 | 7 | 28.01 | 29.00 | | EP-G88105-29-B32 EP-G88105-30-B32 | 178 | 194 | 60 | 32 | 7 | 29.00 | 30.00 | | 178 | 194 | 60 | 32 | 7 | 30.00 | 30.00 | | EP-G88105-301-B32 | 193 | 210 | 60 | 32 | 8 | 30.01 | 31.00 | | EP-G88105-31-B32 | 193 | 210 | 60 | 32 | 8 | 31.00 | 32.00 | | EP-G88105-32-B32 | 193 | 210 | 60 | 32 | 8 | 32.00 | 32.00 | | EP-G88105-321-B40 | 202 | 225 | 70 | 40 | 9 | 32.01 | 33.00 | | EP-G88105-33-B40 | 202 | 225 | 70 | 40 | 9 | 33.00 | 34.00 | | EP-G88105-34-B40 | 202 | 225 | 70 | 40 | 9 | 34.00 | 35.00 | | EP-G88105-35-B40 | 214 | 236 | 70 | 40 | 9 | 35.00 | 36.00 | | EP-G88105-36-B40 | 214 | 236 | 70 | 40 | 9 | 36.00 | 36.00 | | EP-G88105-361-B40 | 227 | 248 | 70 | 40 | 10 | 36.01 | 37.00 | | EP-G88105-37-B40 | 227 | 248 | 70 | 40 | 10 | 37.00 | 38.00 | | EP-G88105-38-B40 | 227 | 248 | 70 | 40 | 10 | 38.00 | 39.00 | | EP-G88105-39-B40 EP-G88105-40-B40 EP-G88105-41-B40 EP-G88105-42-B40 | 240 | 260 | 70 | 40 | 10 | 39.00 | 40.00 | | 240 248 | 260 | 70 | 40 | 10 | 40.00 | 41.00 | | 268 | 70 | 40 | 10 | 41.00 | 42.00 | | 248 | 268 | 70 | 40 | 10 | 42.00 | 42.00 | |
Applications:
1. Mechanical Manufacturing
- Drilling metal components
- High-precision drilling in CNC machining
- Used in automotive, machine tools, and industrial equipment production
2. Aerospace Industry
- Drilling structural parts made of titanium or composites
- Deep hole drilling with high heat and stability requirements
3. Construction and Structural Engineering
- Drilling in concrete, brick, and other hard materials
- Used for installation, reinforcement, or cable passage holes
4. Mold and Precision Machining
- Drilling mold cavities, cooling channels, and other complex shapes
- Suitable for small-diameter, high-precision drilling
5. Electrical and Electronics
- Micro-hole drilling in printed circuit boards (PCBs) or connectors
- Requires high drilling accuracy and surface finish
6. Oil and Mining Equipment
- Part of specialized drilling tools such as core drills
- Operates in high-impact, high-temperature, and high-torque environments