CSJ Crown Drill Bit, 5D Drill Diameter Range 9.00-9.49, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

Product Short Description

CSJ Crown Drill Bit (5D, Ø9.00–9.49mm) – High-Speed, Internal-Cooling Indexable Deep-Hole Drill

The CSJ Crown Drill Bit is a high-performance, 5D indexable insert drill featuring an innovative front-locking body and dual internal cooling channels. Engineered for precision side-locking drill tips, it delivers exceptional stability, rapid chip evacuation, and ultra-high-speed efficiency in deep-hole drilling applications.

Product Overview

The CSJ Crown Drill Bit series represents the next generation of high-efficiency deep-hole drilling technology. Designed with a 5D aspect ratio (drilling depth up to 5 times the diameter), this tool bridges the gap between solid carbide drills and traditional indexable drills.

Its standout feature is the front-locking body mechanism combined with a side-locking drill tip, ensuring maximum clamping rigidity and minimal runout even under high-speed, high-feed conditions. Equipped with advanced internal cooling channels, it delivers coolant directly to the cutting edge, drastically reducing thermal wear and guaranteeing flawless chip evacuation.

Technical Parameters

Core Functions & Benefits

• High-Speed Deep Drilling: The 5D capability allows for fast, single-pass deep-hole drilling without the need for peck-drilling cycles, significantly shortening cycle times.

• Superior Clamping Stability: The hybrid front-locking body and side-locking tip design minimize vibration, ensuring high dimensional accuracy and excellent hole surface finish.

• Advanced Thermal Control: Dual internal cooling holes blast coolant directly at the cutting zone, suppressing heat buildup and extending insert tool life.

• Cost-Efficient Indexable Design: No need to regrind the entire drill. Simply replace the crown drill tip when worn, drastically reducing tooling costs and downtime.

Application Scenarios

This industrial-grade drill bit is highly versatile and optimized for heavy-duty manufacturing environments, including:

• Automotive Industry: Drilling engine blocks, crankshafts, and transmission components.

• Aerospace & Defense: Precision machining of high-strength alloys, landing gears, and structural frames.

• Mold & Die Making: Creating deep coolant lines and core ejector holes in mold bases.

• General Engineering: High-efficiency batch hole-making in steel, stainless steel, cast iron, and exotic alloys.