Sandvik Coromant 6239457 Replaceable-tip Drill 23-23.99mm

Product Description

The SANDVIK COROMANT 6239457 is a replaceable-tip drill body engineered for precision hole-making in metal cutting applications. Part of the CoroDrill 870 series, it accepts 870-2390-23-PM style inserts seated at insert seat size 23, allowing fast tip changes without removing the tool body from the spindle. The drill body is constructed from steel with a straight-cylindrical shank and features through-coolant capability to clear chips and manage heat at the cutting zone. It covers a drill diameter range of 23.00 to 23.99 mm (0.9055 to 0.9445 inches) with a maximum drill depth of 123.57 mm (4.865 inches), representing a 5xD depth-to-diameter ratio. Overall length is 205 mm (8.071 inches). This tool is intended for use by machinists and CNC operators in production machining environments.

The 6239457 drill body is suited for through-hole and blind-hole operations in ferrous and non-ferrous materials where consistent diameter control across medium-depth bores is required. The 870 LX-5 toolholder style integrates with compatible CNC machining centers and turning centers running through-coolant systems. The replaceable-tip design reduces tooling downtime by allowing insert swaps at the machine without full tool disassembly, making it practical for high-volume production runs and job shop environments where changeover speed matters.

Key Features

• Replaceable-tip design accepts 870-2390-23-PM inserts at insert seat size 23 for fast in-machine tip changes
• Through-coolant capability directs coolant to the cutting edge for chip evacuation and thermal control
• 5xD depth-to-diameter ratio supports drilling to 123.57 mm (4.865 inches) maximum depth
• Straight-cylindrical shank in 870 LX-5 toolholder style for secure spindle retention
• Steel body construction provides rigidity across the 205 mm (8.071 inches) overall length
• Flute length of 145.39 mm (5.724 inches) supports chip flow throughout the full depth range

Compatibility

Compatible insert style is 870-2390-23-PM at insert seat size 23. The tool body is part of the CoroDrill 870 series in the 870 LX-5 toolholder style. Designed for use in CNC machining centers equipped with through-coolant spindle systems.

Installation Notes

Installation and setup should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool turret or carousel is safely indexed before inserting or removing the drill body. Confirm through-coolant passages are clear and coolant pressure is within the machine specification before operation. Follow the insert manufacturer torque guidance when seating the replaceable tip to avoid seat damage.