CSJ Crown Drill Bit,10D Drill Diameter Range 30.00-30.99, 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 (Ø30.00–30.99 mm)

The CSJ Crown Drill Bit is a high-performance 10D indexable drill designed for deep-hole machining. Featuring a front-locking structure, internal coolant channels, and a side-locking replaceable drill tip, it delivers exceptional chip evacuation, high positional accuracy, and superior efficiency in high-speed drilling operations.

2. Product Description

The CSJ Series Crown Drill is engineered to meet the rigorous demands of deep-hole drilling (up to 10D) with high precision and productivity. Designed with an advanced front-locking mechanism and replaceable carbide drill tips, this indexable drill allows fast and easy tip replacements directly on the machine without re-setting tool lengths, significantly reducing downtime.

Equipped with internal cooling passages, the CSJ Crown Drill delivers pressurized coolant directly to the cutting edge, effectively lowering temperatures, lubricating the cut, and flushing out chips continuously. Its optimized flute geometry and rigid body design ensure stable cutting performance, minimizing vibration and enhancing surface finish even during challenging deep-hole operations.

3. Product Parameters

• Brand / Series: CSJ Series Crown Drill

• Drilling Depth Ratio: 10D (10x Diameter)

• Drill Diameter Range: Ø 30.00 mm – Ø 30.99 mm

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

• Cooling System: Through-Coolant / Internal Cooling

• Insert / Tip Type: Exchangeable Carbide Crown Tip / Side-Locking Insert

• Processing Efficiency: 2–3x higher efficiency compared to conventional twist drills

• Shank Type: Straight Shank with Locking Flat / ISO standard

4. Product Functions & Key Features

• High-Efficiency Deep-Hole Drilling (10D): Capable of drilling precise holes up to 10 times its diameter in a single pass without pecking.

• Effective Chip Evacuation & Cooling: Internal coolant channels deliver high-pressure coolant directly to the cutting zone, ensuring instant chip flushing and preventing thermal deformation.

• Quick & Easy Insert Change: The front/side-locking design allows quick replacement of worn drill tips without removing the tool holder from the spindle, ensuring high repeatability and reduced setup times.

• High Rigidity & Hole Quality: Reinforced tool body absorbs cutting forces and suppresses chatter, delivering superior dimensional accuracy and smooth surface finishes.

• Cost-Effective Maintenance: Only the worn crown tip needs replacement, significantly lowering overall tooling costs compared to solid carbide drills.

5. Application Scenarios

• CNC Machining Centers & Lathes: Ideal for high-speed automated drilling on standard CNC machining centers, horizontal borers, and lathe machines.

• Heavy Machinery & Automotive Industry: Used for drilling deep oil holes, engine blocks, hydraulic cylinders, and transmission components.

• Mold & Die Manufacturing: Suitable for deep cooling-channel drilling in large injection molds and forging dies.

• Energy & Power Equipment: Applied in machining flanges, heat exchangers, boiler tube sheets, and wind power components.

• Target Materials: Suitable for processing steel, alloy steel, stainless steel, cast iron, and high-temperature alloys.