Kennametal 1606901 Replaceable-tip Drill Ksem Series

Product Description

The KENNAMETAL 1606901 is a replaceable-tip drill body from the KSEM series, designed for high-productivity metal removal in machining centers and CNC drilling applications. It accepts KSEM1172 inserts at insert seat size 7, covering a drill diameter range of 29.77 to 30 mm (1.172 to 1.181 inches). The straight-cylindrical shank measures 31.75 mm (1.25 inches) in diameter and 82.55 mm (3.25 inches) in length, with an overall length of 273.05 mm (10.75 inches). Through-coolant capability delivers cutting fluid directly to the tip for improved chip evacuation and tool life in deep-hole applications. Licensed machinists and CNC operators working in job shop and production environments are the primary users of this tool body.

This drill body is suited for drilling operations requiring a 5xD depth-to-diameter ratio, with a maximum drill depth of 150.11 mm (5.91 inches). The KSEM series platform is commonly applied in aerospace, automotive, and general metalworking production environments where high feed rates and consistent hole quality are required. The replaceable-tip design reduces tooling cost per hole by allowing insert changes without scrapping the entire body, making it well-suited for high-volume production runs on horizontal and vertical machining centers.

Key Features

• Accepts KSEM1172 replaceable drill tip inserts at seat size 7 for fast tip changes without body replacement
• Through-coolant design with 5.00 mm (0.197 inch) coolant hole diameter for effective chip flushing in deep holes
• 5xD depth-to-diameter ratio supports drilling up to 150.11 mm (5.91 inches) deep in a single pass
• Straight-cylindrical shank at 31.75 mm diameter provides secure clamping in standard hydraulic, shrink-fit, or collet chucks
• Flute length of 186.44 mm (7.34 inches) ensures chip clearance throughout the full depth range
• Part of the KSEM modular drill platform, enabling one body to be used across multiple tip geometries and coatings

Compatibility

Compatible with KSEM1172 series replaceable drill tip inserts at insert seat size 7. This tool body is part of the KSEM modular drill system and is designed for use in machine spindles that accept a 31.75 mm straight-cylindrical shank.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or CNC tooling technician with the machine spindle fully stopped and the machine in a locked-out state. The replaceable tip insert should be seated and torqued using the manufacturer-specified Torx or hex key supplied with the tooling system - do not use substitute drivers. Ensure the coolant ports are clear before assembly and verify through-coolant pressure compatibility with the machining center. Inspect the insert pocket seat for chips or damage before each tip change to maintain runout tolerances.