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
Ningbo Lianchuang Hewo Precision Tools Co., Ltd
Ningbo Lianchuang Hewu Precision Tools Co., Ltd. specializes in
providing comprehensive solutions for precision cutting technology.
We offer customers high-quality metal cutting tools, including
indexable inserts, carbide cutting tools, PCD cutting tools, as
well as design development and technical support. Additionally, we
provide integrated tool project management solutions.
Lianchuang Hewo was established in October 2016. After nearly a
decade of development, it has formed strategic partnerships with
numerous internationally renowned brands. Its products have been
widely applied in high-end manufacturing fields such as the
automotive industry, mold manufacturing, construction machinery,
power generation equipment, precision machinery, and the medical
industry. Through rapid precision manufacturing and technical
support, Lianchuang Hewo is willing to become your own tool
workshop!
company products
Solid carbide cutting tool
Superhard cutting tools/indexable cutting tools
Grinding/coating service
Smart tool cabinet/tool management