CSJ Crown Drill Bit, 7D Drill Diameter Range 26.00-26.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

The CSJ Crown Drill Bit is a high-performance indexable insert drill engineered for high-speed, deep-hole machining. Featuring a 7D drilling depth capability, a front-locking body design, and an integrated side-locking drill tip, it delivers exceptional stability, effortless insert replacement, and high-efficiency chip evacuation via internal cooling.

Product Introduction

Designed for demanding industrial metalworking, the CSJ Crown Drill Bit combines superior rigidity with versatile modularity. Its front-locking mechanism and side-locking drill tip secure the insert firmly under high torque, preventing tool deflection and vibration during deep-hole operations up to 7 times the diameter ($7D$). Equipped with internal cooling channels, it directs coolant straight to the cutting edge, reducing thermal stress, extending tool life, and ensuring optimal chip evacuation in high-speed applications.

Product Parameters

Product Function

• High-Speed Deep Hole Drilling: Precision machining up to 7D depth without requiring pre-drilling or pilot holes in most setups.

• Internal Thermal Management: Delivers high-pressure coolant directly to the cutting zone to lower temperature and flush out chips smoothly.

• Quick Insert Indexing: The front- and side-locking structure allows fast tip replacement directly on the machine, reducing setup times and downtime.

• Vibration Reduction: Rigidity-focused design minimizes deflection, improving hole straightness and surface finish.

Applications

• Industries: Aerospace, automotive, heavy machinery, mold and die manufacturing, oil & gas, and general engineering.

• Materials: Carbon steel, alloy steel, stainless steel, cast iron, and high-temperature alloys.

• Equipment: CNC machining centers, CNC lathes, horizontal boring machines, and gantry milling machines.