Iscar 3260051 Indexable Insert Drill 18mm 4xd

Product Description

The ISCAR 3260051 is an indexable insert drill designed for precision through-hole and blind-hole drilling in metal cutting applications. Built to the DR-4D-N series standard, it accepts two SOMX060304 inserts and delivers a maximum drill depth of 2.84 inches at a 4xD depth-to-diameter ratio. The body is constructed from steel with a 1-inch Weldon flat shank that seats securely in compatible toolholders. Overall length is 6.70 inches. Coolant is delivered through both axial concentric and radial ports, with NPT-threaded coolant entry points at both the shank end and body side to support high-pressure through-coolant systems. This drill is installed and operated by machinists and CNC tooling technicians in production and job-shop environments.

The 3260051 is suited for general-purpose drilling operations on machining centers and CNC lathes where a right-hand cutting, straight-shank indexable drill is required. The 18mm maximum drill diameter and 4xD depth ratio make it appropriate for medium-depth hole applications across a range of ferrous and non-ferrous workpiece materials. The Weldon flat shank and 1-inch modular connection size allow positive drive without slippage under typical production feeds and speeds.

Key Features

• 4xD drill depth ratio with 2.84 inch maximum drill depth and 2.84 inch flute length
• Accepts two SOMX060304 indexable inserts for fast edge changes without regrinding
• Through-coolant capable with axial concentric and radial coolant delivery ports
• 1-inch Weldon flat shank provides positive torque drive and accurate seating
• Right-hand cutting direction for standard spindle rotation on CNC machining centers
• Steel body construction in the DR-4D-N series with 6.70 inch overall length

Compatibility

Compatible insert style is SOMX, compatible insert size code is 060304 (SOMX060304). Insert lock screw is SR 34-508/L. Shank end coolant hole thread size is 3/8-18 NPT and body side coolant hole thread size is 1/16-27 NPT.

Installation Notes

Installation and tooling changes should be performed by qualified machining personnel with the spindle fully stopped and machine in a locked-out state. Seat the Weldon flat shank fully into the toolholder and confirm setscrew engagement against the flat before operation. Verify coolant line connections at both the shank end and body side ports before running coolant-through cycles. Follow the insert manufacturer torque guidelines for the SR 34-508/L lock screw and inspect insert seating before each production run.