CSJ Crown Drill Bit, 6D Drill Diameter Range 35.00-35.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

📄 Product Overview

Short Description

The CSJ 6D Front-Locking Crown Drill Bit is a high-performance, high-speed deep-hole drilling tool designed for diameter ranges of 35.00–35.99 mm. Featuring an advanced internal cooling system and a secure front-locking mechanism, it delivers exceptional stability, rapid chip evacuation, and extended tool life in heavy-duty machining environments.

Product Introduction

Engineered for precision and high efficiency, the CSJ Crown Drill Bit bridges the gap between solid carbide drills and traditional indexable drills. Its 6D drilling depth capability allows for ultra-deep hole creation without sacrificing accuracy. The combination of an internal coolant supply and a rigid side-locking drill tip structure ensures minimal thermal distortion and maximum structural integrity. By allowing rapid crown/insert replacement directly on the machine, it dramatically reduces downtime and lowers per-hole manufacturing costs.

🛠️ Technical Specifications & Functions

Product Parameters

• Brand / Series: CSJ Crown Drill Series

• Drilling Depth Ratio: 6D (6 times the drill diameter)

• Diameter Range: $\varnothing$ 35.00 mm – $\varnothing$ 35.99 mm

• Locking Mechanism: Front-Locking Body / Side-Locking Drill Tip

• Cooling System: Dual Internal Coolant Holes (Through-tool coolant)

• Shank Type: Side-lock / Weldon shank style compatibility

• Insert Type: Replaceable Indexable Crown / Drill Tip

Key Functions & Benefits

• High-Speed Deep-Hole Execution: The 6D depth rating paired with optimized flute geometry allows for continuous, high-feed deep drilling.

• Internal Cooling & Chip Evacuation: Direct-to-tip internal coolant channels blast away chips instantly, preventing chip clogging and lowering cutting zone temperatures.

• Ultra-Rigid Front-Locking Design: The front-locking mechanism coupled with a side-locking tip guarantees precise centering, minimizes runout, and prevents head deflection under heavy loads.

• Cost-Efficient Indexable System: No need to regrind the whole tool. Simply replace the worn crown tip to restore 100% cutting efficiency, drastically cutting tooling costs.

🏭 Applications & Industry Use

Target Applications

• Deep-Hole Drilling: Continuous drilling of deep components up to $6 \times D$ depth without peck-drilling cycles.

• Large Diameter Boring: High-efficiency roughing and semi-finishing of large $\varnothing 35\text{mm}+$ bores.

• Blind and Through-Hole Machining: Excellent performance in both solid materials and pre-cast holes.

Common Industry Scenarios

• Heavy Machinery & Energy: Machining of large hydraulic cylinders, wind turbine components, and pressure vessels.

• Automotive & Marine: Production of large engine blocks, crankshafts, and drivetrain components.

• Die & Mold Manufacturing: Drilling core cooling lines and ejector pin holes in massive mold bases.

• Aerospace & Defense: Processing high-strength structural alloys, landing gear components, and turbine shafts.