Sandvik Coromant 6035731 Replaceable-tip Drill 18-18.99mm

Product Description

The SANDVIK COROMANT 6035731 is a replaceable-tip drill body designed for precision hole-making in metalworking and machining applications. Built on the CoroDrill 870 platform, this drill body accepts 870-1890-18-PM insert tips at seat size 18, covering a drill diameter range of 18.00 to 18.99 mm (0.7087 to 0.7476 inches). The tool body is constructed from steel with a straight-cylindrical shank and measures 129 mm (5.08 inches) overall length. Through-coolant capability is built in, supporting chip evacuation and extended insert life at higher feed rates. This tool is intended for use by machinists and tooling professionals in CNC machining centers and drill press applications.

The 6035731 suits production environments where consistent, repeatable bore diameters in the 18 to 18.99 mm range are required. With a 3xD depth-to-diameter ratio and a maximum drill depth of 59.86 mm (2.36 inches), it is well-suited for general-purpose drilling in steel, cast iron, and similar workpiece materials. The 870 LX-3 toolholder style makes it compatible with standard machine spindle setups found in job shops and high-volume manufacturing lines. Licensed machine operators and CNC programmers typically select this body when transitioning from solid carbide drills to a more economical replaceable-tip system.

Key Features

• Replaceable-tip design accepts 870-1890-18-PM inserts at seat size 18, reducing tooling cost per hole
• Through-coolant construction channels fluid directly to the cutting edge for chip control and heat management
• 3xD drill depth ratio supports depths up to 59.86 mm (2.36 inches) in a single pass
• Straight-cylindrical shank in 870 LX-3 toolholder style for straightforward spindle mounting
• Steel body construction provides rigidity and durability across high-cycle production runs
• Flute length of 76.13 mm (2.997 inches) aids chip clearance throughout the drilling depth

Compatibility

This drill body is compatible with 870-1890-18-PM replaceable insert tips at insert seat size 18. It is part of the CoroDrill 870 series and uses the 870 LX-3 toolholder style. No additional compatible model numbers were specified in the product data.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or tooling technician with the machine fully powered down and spindle locked before handling. Insert tips must be seated and torqued according to the tool manufacturer's documentation using the appropriate Torx or hex key — do not use substitutes. Confirm through-coolant passages are clear and coolant pressure is within the machine's rated specification before resuming operation. Follow applicable shop safety protocols and machine tool operating procedures during setup.