Kennametal 1329709 Replaceable-tip Drill 23.81-24mm

Product Description

The KENNAMETAL 1329709 is a replaceable-tip drill body designed for precision hole-making in metal-cutting applications. It accepts KSEM0938 series inserts at an insert seat size 4, allowing the cutting tip to be swapped without replacing the full drill body. The tool covers a diameter range of 23.81 to 24 mm (0.9374 to 0.9449 inches) and reaches a maximum drill depth of 120 mm (4.72 inches), representing a 5xD depth-to-diameter ratio. Through-coolant delivery via a 3.5 mm (0.1378 inch) coolant hole supports chip evacuation and heat control at the cutting zone. The straight-cylindrical shank measures 25.4 mm in diameter and 76.2 mm in length, providing consistent tool holding in standard drill chucks and collet systems.

This drill body is intended for use in CNC machining centers, horizontal boring mills, and similar machine tool platforms where indexable drilling is preferred over solid carbide tooling. It suits production environments where tool-change downtime must be minimized and consistent hole geometry is required across high volumes of parts. The 5xD depth capability makes it appropriate for through-holes and deeper blind-hole applications in ferrous and non-ferrous workpiece materials. Machinists and tooling specialists in aerospace, automotive, and general metalworking shops are the primary installers and users of this tooling system.

Key Features

• Accepts KSEM0938 series replaceable tips - insert seat size 4
• Diameter range: 23.81 to 24 mm (0.9374 to 0.9449 inches)
• Maximum drill depth: 120 mm (4.72 inches) at 5xD ratio
• Through-coolant design with 3.5 mm coolant hole for chip and heat management
• Straight-cylindrical shank: 25.4 mm diameter, 76.2 mm shank length
• Overall length: 228.6 mm (9 inches); flute length: 148.38 mm (5.84 inches)

Compatibility

Designed for use with KSEM0938 series replaceable drill tips within the KSEM tooling platform. Insert seat size 4 must be matched when selecting replacement tips.

Installation Notes

Installation and tip changes should be performed by a qualified machinist or tooling technician with the machine powered off and the spindle fully stopped. The replaceable tip must be seated fully and torqued according to the toolholder manufacturer specifications before operation. Verify shank clamping in the toolholder meets the machine tool builder requirements for the spindle interface being used. Through-coolant passages should be cleared and confirmed open before returning the tool to service.