Milwaukee Pilot Pin 49-59-0012 2 Inch Annular Cutter Replacement (Spring Loaded Slug Ejector Center Guide Magnetic Drill Press Coring Tool)

Milwaukee 49-59-0012 2-Inch Retractable Pilot Pin for Magnetic Drill Annular Cutters

The Milwaukee 49-59-0012 2-Inch Retractable Pilot Pin provides center alignment, internal coolant flow, and automatic positive slug ejection for annular cutters with a 2-inch (2.00 in) maximum depth of cut. Precision-ground from high-tensile hardened alloy tool steel, this replacement centering pin aligns magnetic drill presses over center-punched layout marks on structural steel beams, plate flanges, and iron weldments. As the spindle feeds downward, the pin retracts smoothly into the 3/4-inch Weldon arbor while opening the internal fluid valve, then delivers spring-assisted ejection of the solid metal center slug at breakthrough.

Best Used For:

• Structural Steel Hole Centering: Locating center punch marks on ASTM A36 and A572 structural I-beams before engaging 2-inch depth annular cutters.
• Automatic Core Slug Ejection: Ejecting stubborn steel cores instantly at breakthrough to prevent cutter jams in repetitive production drilling.
• Internal Coolant Flow Regulation: Directing pressurized cutting fluid through the center arbor to lubricate cutting teeth during deep plate coring.

Key Performance & Safety Features

• Positive Spring-Loaded Slug Ejection: Forces the spent metal core out of the cutter barrel immediately upon breakthrough to eliminate manual extraction downtime.
• Precision-Ground Centering Tip: Seats squarely into small center-punch indents to guarantee runout-free starts without cutter wander or tooth damage.
• Hardened High-Tensile Steel Core: Resists severe bending moments, high frictional heat, and axial thrust loads encountered during heavy plate drilling.
• Internal Arbor Coolant Activation: Depresses internal arbor valves to channel water-soluble lubricant directly to the annular cutter tooth edge.
• Dedicated 2-Inch Depth Fitment: Engineered specifically for Milwaukee and standard 3/4-inch Weldon-shank 2-inch depth annular cutters.

What's Included

• (1) Milwaukee 49-59-0012 2-Inch Retractable Annular Cutter Pilot Pin

Technical Specifications

Pro-Tip: Apply a light coat of machine oil along the cylindrical shaft of the pilot pin before inserting it into the magnetic drill arbor; smooth lubrication prevents the pin from sticking inside the arbor bore during heavy continuous cycling.