Iscar 3201844 Indexable Insert Drill 1-3/16 in 3xd

Product Description

The ISCAR 3201844 is an indexable insert drill from the DR-TWIST series, designed for precision holemaking in metalworking and machining applications. It accepts two SOMT-style indexable inserts and produces holes up to 1.1875 inches in diameter at a maximum drill depth of 3.56 inches, corresponding to a 3xD depth-to-diameter ratio. The straight cylindrical shank measures 1.25 inches in diameter and 3.0 inches in length, providing rigid clamping in standard drill chucks or toolholders. Internal coolant-through capability keeps cutting edges cool during high-throughput drilling cycles.

This drill body is suited for general-purpose holemaking in ferrous and non-ferrous materials on CNC machining centers, lathes with live tooling, and manual mills equipped with appropriate toolholding. The 3xD ratio makes it well suited to moderate-depth holes in production environments where cycle time and insert indexability matter. It is typically installed and set up by machinists and CNC programmers in job shop, aerospace, die-and-mold, and general manufacturing operations.

Key Features

• Accepts two SOMT-DT or SOMT-GF indexable inserts for fast, cost-effective edge changes without regrinding
• Coolant-through design with body side thread size 1/16-27 and shank end thread size 1/2-14 for effective chip evacuation and tool life
• 3xD depth-to-diameter ratio supports drill depths from 3.0 to 4.0 inches range
• Straight cylindrical shank at 1.25 inches diameter fits standard ER and hydraulic toolholders
• Overall body length of 4.86 inches with a collar diameter of 1.654 inches for stable body support
• General-purpose tool performance rating suitable for a wide range of workpiece materials

Compatibility

Compatible with SOMT-DT and SOMT-GF insert styles in size code 09T306-DT. Designed for use in the DR-TWIST drill series with a 1-1/4 inch modular connection size.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool builder guidelines and shop safety procedures. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the drill body. Secure the straight shank to the specified clamping torque recommended by the toolholder manufacturer. Verify insert seating and screw torque before initiating the first cut, and confirm coolant lines are connected and flowing before engaging the workpiece.