Sandvik Coromant 6035699 Replaceable-tip Drill Corodrill 870

Product Description

The SANDVIK COROMANT 6035699 is a replaceable-tip drill body from the CoroDrill 870 series, designed for precision drilling in metal-cutting applications. The tool accepts 870-1690-16-PM inserts at insert seat size 16, covering a drill diameter range of 16 to 16.99 mm (0.6299 to 0.6689 inches). The straight-cylindrical shank measures 20 mm (0.7874 inches) in diameter with a 50 mm (1.9685 inches) shank length. Overall length is 122 mm (4.8032 inches). Built from steel, the body includes through-coolant capability to support chip evacuation and tool life in demanding drilling operations. Licensed machinists and CNC machine operators are the typical end users.

The 6035699 drill body suits horizontal and vertical machining centers as well as CNC lathes configured for driven-tool work. It is intended for production drilling where consistent hole quality and fast insert changes are required. The 3xD depth-to-diameter ratio supports a maximum drill depth of 53.56 mm (2.1087 inches), making it appropriate for medium-depth through-holes and blind-hole applications in steel, cast iron, and similar workpiece materials. The Toolholder Style 870 L-3 designation applies to this body.

Key Features

• Replaceable-tip design with 870-1690-16-PM insert compatibility for fast tip changes without removing the body from the spindle
• Through-coolant channels deliver cutting fluid directly to the cutting edge, supporting chip control and extended insert life
• 3xD depth-to-diameter ratio with a maximum drill depth of 53.56 mm (2.1087 inches)
• 20 mm straight-cylindrical shank fits standard ER and hydraulic toolholders sized for 20 mm shanks
• Steel body construction provides rigidity and resistance to deflection during high-feed drilling cycles
• Flute length of 69.42 mm (2.7331 inches) supports chip clearance across the full drilling depth

Compatibility

Compatible with 870-1690-16-PM replaceable drill tip inserts at insert seat size 16. Designed for use with Toolholder Style 870 L-3. Part of the CoroDrill 870 series platform.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be fully stopped and the machine placed in a safe, locked-out state before inserting or removing the drill body from the toolholder. Verify insert seat cleanliness and torque the replaceable tip according to the insert manufacturer's specification before running the tool. Confirm coolant supply lines are connected and flow is verified before initiating the first cutting cycle.