Iscar 3203281 Replaceable-tip Drill 0.256-0.271 in

Product Description

The ISCAR 3203281 is a replaceable-tip drill body from the SumoCham series, designed for precision holemaking in metalworking applications. It accepts a range of interchangeable drill tip inserts, allowing the body to be reused while only the cutting tip is replaced. The drill covers a diameter range of 0.256 to 0.271 inches with a maximum drill depth of 1.3 inches and a 5xD depth-to-diameter ratio. A 1/2-inch straight-cylindrical shank provides secure clamping in standard drill chucks or tool holders. Through-coolant capability supports chip evacuation and heat management during deep hole operations. This toolholder is installed and serviced by machinists and CNC operators in production or job shop environments.

The 3203281 is suited for holemaking operations on machining centers and CNC lathes where repeatable, accurate hole diameter is required. The replaceable-tip design reduces tooling cost by eliminating full drill replacement when the cutting edge wears. It is applicable in general metalworking, automotive, aerospace, and die-mold production environments where tight diameter tolerances and consistent drill depth are critical.

Key Features

• Diameter range of 0.256 to 0.271 inches accommodates insert tip variation within SumoCham series
• 5xD drill depth-to-diameter ratio with 1.3 inches maximum drill depth
• Through-coolant channels support chip evacuation and tool life in deep hole cutting
• Compatible with FCP, ICK, ICK-2M, ICM, ICN, ICP, and iCP-2M insert styles, seat size 6.5
• 1/2-inch straight-cylindrical shank fits standard toolholders without special adapters
• ISO 13399 compliant toolholder data for integration with CAM and tool management software

Compatibility

Compatible with FCP, ICK, ICK-2M, ICM, ICN, ICP, and iCP-2M replaceable drill tip inserts at insert seat size 6.5. Part of the ISCAR SumoCham series, DCN toolholder style.

Installation Notes

Installation and tip replacement should be performed by a qualified machinist following the machine tool manufacturer lockout and energy isolation procedures before any toolholder service. Ensure the insert seat is clean and free of chips before seating a new tip, as contamination can cause runout and affect hole accuracy. Torque the insert securing screw only with the correct ISCAR wrench specified for this seat size. Verify shank clamping is within the toolholder manufacturer minimum engagement length before operation.