CSJ Crown Drill Bit,10D Drill Diameter Range 28.00-28.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

1. Short Description

CSJ Crown Drill Bit (10D, ⌀28.00–28.99 mm) – High-Speed Internal Cooling Deep-Hole Indexable Drill

Designed for heavy-duty 10D deep-hole drilling, the CSJ Crown Drill features an innovative front-locking system, side-locking insert/tip structure, and optimized internal coolant channels. Built for high-speed machining, high rigidity, and superior chip evacuation, it delivers 2–3x higher efficiency compared to traditional twist drills while significantly reducing tooling setup times.

2. Product Overview

The CSJ Crown Drill Bit (10D Series, ⌀28.00–28.99 mm) is an advanced indexable deep-hole drilling system designed for CNC machining centers, horizontal boring machines, and heavy-duty drilling platforms. Combining the strength of a solid drill body with the quick-change convenience of replaceable crown drill tips, it delivers exceptional stability during high-speed, deep-hole penetration.

Engineered with high-pressure internal cooling channels and a robust front-locking system, this tool minimizes thermal deformation, enhances chip removal, and guarantees precise hole accuracy without the need for frequent pecking cycles.

3. Key Features & Advantages (Product Functions)

• 10D Deep-Hole Penetration: Engineered specifically for deep drilling up to 10 times the tool diameter with maximum rigidity and minimal deflection.

• Front-Locking & Side-Locking Mechanism: Securely locks the drill tip/insert in place, enabling fast on-machine tip replacement without removing the tool holder.

• Internal Coolant System: High-pressure through-coolant delivers fluid directly to the cutting edge, rapidly lowering temperatures and flushing chips out smoothly.

• 2–3x High Efficiency: Replaces conventional twist drills with higher feed rates and cutting speeds, drastically boosting overall productivity.

• Cost-Effective Replaceable Tip Design: Only the drill tip needs replacing when worn, preserving the heavy-duty alloy body and cutting tooling overhead costs.

4. Specifications (Product Parameters)

5. Applications & Industry Scenarios

• Mould & Die Manufacturing: Deep ejector pin holes, cooling lines, and core block drilling.

• Heavy Machinery & Industrial Equipment: Large flange drilling, structural steel fabrication, and hydraulic manifold blocks.

• Automotive & Powertrain Production: Engine blocks, transmission components, crankshaft oil holes, and axle machining.

• Wind Power & Energy Sector: Drilling turbine flanges, heat exchangers, and boiler plates.

• General Aerospace & Defense Engineering: High-precision deep-hole machining in alloy steel and tough metals.