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TPD Series Crown Drill – Product Introduction
Created on 01.16
TPD Series Crown Drill – Product Introduction
The TPD Series Crown Drill is a modular indexable drilling system designed for high-efficiency drilling of small to medium diameters.
By combining a replaceable crown tip, a high-rigidity drill body, and optimized chip evacuation geometry,
the TPD series delivers an excellent balance of productivity, stability, and cost efficiency, especially in carbon steel and alloy steel machining.
TPD crown drills are ideal as primary drilling tools for CNC machining centers, mass-production lines, and general machining workshops.
1. Design Concept of the TPD Series
The core design philosophy of the TPD series is:
To replace solid drills with a modular system that ensures stable hole quality while significantly reducing tooling cost and downtime.
Thanks to the modular structure, only the crown tip needs to be replaced when worn.
There is no need for re-setting tool length, making the TPD series highly suitable for continuous machining and multi-shift production environments.
2. Core Structure & Technical Features
1️⃣ Replaceable Crown Tip Design
- High-precision locating interface ensures excellent repeatability
- Fast and easy tip replacement
- No re-touching or tool length adjustment required
- Multiple tip geometries and grades available for different materials
- Significantly lower consumable cost compared to solid drills
2️⃣ High-Rigidity Drill Body
- Manufactured from high-strength alloy steel
- Excellent vibration resistance and drilling stability
- Suitable for continuous machining and higher feed rates
- Maintains stable hole position and straightness in steel and alloy steel
3️⃣ Optimized Chip Evacuation Geometry
- Specially designed flute geometry for smooth chip flow
- Reduced cutting resistance
- Lower risk of chip clogging, especially in deeper holes
- Improves surface finish and tool life
4️⃣ Internal Coolant Design
- Coolant delivered directly to the cutting zone
- Effective heat reduction during drilling
- Improves chip evacuation in deep-hole applications
- Extends both tip and body service life
3. Typical Machining Range
- Diameter range:Ø8.0 – Ø32.9 mm
- Drilling depth options:3D / 5D / 8D / 10D / 12D
- Coolant supply:Internal coolant
- Workpiece materials:
- Carbon steel
- Alloy steel
The TPD series covers a wide range of drilling requirements, from standard through holes to medium-deep and deep-hole applications.
4. Industry Applications
Automotive Components
- Structural steel parts
- Transmission and chassis-related components
Benefits:
- Suitable for high-cycle mass production
- Consistent hole diameter and position
- Reduced downtime due to quick tip replacement
General Machining / Job Shops
- Flanges
- Housings
- Mechanical structural parts
Benefits:
- One drill body compatible with multiple tips
- Reduced tool inventory
- Ideal for multi-variety, small-batch production
Structural & Equipment Manufacturing
- Steel structures
- Machine bases
- Thick-wall steel components
Benefits:
- High rigidity under heavy cutting conditions
- Stable drilling performance in demanding applications
AI Server Liquid Cooling Connectors
Modern AI server designs increasingly utilize stainless steel or brass liquid cooling connectors to achieve thermal management of high-performance processors.
- Precision drilling of liquid cooling fluid ports and manifolds
- Efficient roughing for precision Swiss-type lathes
Advantages:
- Stable hole quality, high production efficiency, suitable for high-volume coolant block production
- Superior chip removal performance of deep grooved manifolds
Role in the Machining Process (Context with New Applications)
In modern manufacturing workflows—from automotive frames to AI liquid cooling manifolds and Swiss-type precision parts—
the TPD Crown Drill consistently functions as the high-efficiency drilling tool in roughing or semi-finishing stages:
TPD Crown Drill → Boring / Reaming / Threading / Finishing Operations
It ensures reliable hole creation, providing a solid foundation for subsequent precision processes.
The TPD Series Crown Drill is a modular drilling solution designed for high-efficiency holemaking across industries—from automotive and heavy equipment to AI server liquid cooling systems and Swiss-type precision machining—delivering stable performance, lower tooling cost, and excellent chip control in carbon steel and alloy steel applications.
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