Kennametal 1329937 Replaceable-tip Drill Ksem Series

Product Description

The KENNAMETAL 1329937 is a replaceable-tip drill body in the KSEM series, designed for high-productivity hole-making in metal-cutting applications. It accepts KSEM1125 insert tips at an insert seat size of 7, covering a drill diameter range of 28.58 to 29.08 mm (1.1252 to 1.1449 inches). The body features a straight-cylindrical shank measuring 31.75 mm in diameter and an overall length of 273.05 mm (10.75 inches). Through-coolant capability is built in via a 5.00 mm coolant hole, supporting higher cutting speeds and longer tool life. This tool is installed by machinists and CNC operators in production machine shops and job shops.

The 1329937 is suited for deep-hole drilling operations with a depth-to-diameter ratio of 5xD, reaching a maximum drill depth of 150 mm (5.91 inches). It fits vertical machining centers, horizontal machining centers, and turning centers equipped with live tooling that accept a 31.75 mm straight-cylindrical shank. Typical applications include structural steel, alloy steel, cast iron, and similar workpiece materials where a modular, replaceable-tip system reduces tooling cost and setup time compared to solid carbide drills.

Key Features

• Replaceable-tip design accepts KSEM1125 inserts, insert seat size 7 - no full tool replacement when the tip wears
• 5xD depth-to-diameter ratio with a maximum drill depth of 150 mm (5.91 inches)
• Through-coolant delivery via a 5.00 mm coolant hole for improved chip evacuation and heat management
• 31.75 mm straight-cylindrical shank for broad machine compatibility
• Flute length of 186.48 mm (7.34 inches) supports chip flow over the full drilling depth
• Overall length of 273.05 mm (10.75 inches) with an 82.55 mm shank length

Compatibility

Designed for use with KSEM1125 replaceable drill-tip inserts at insert seat size 7. Part of the KSEM series modular drilling system. Requires a machine spindle or toolholder accepting a 31.75 mm straight-cylindrical shank with through-coolant supply to utilize the internal coolant feature.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or tooling technician with the machine powered down and the spindle fully stopped before handling any insert or tool body. Torque the replaceable tip according to the KSEM system tooling documentation supplied by KENNAMETAL - do not estimate clamping force. Verify coolant supply pressure and flow at the machine before running the tool at depth, as interrupted coolant flow during deep drilling can cause rapid tool damage or workpiece damage. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when setting tool offsets and running first-article cuts.