YG-1 S01611 Spade Drill Insert 3-1/4 in Hss Tin

Product Description

The YG-1 S01611 is a high speed steel spade drill insert designed for large-diameter boring operations in metal fabrication and machining environments. Part of the T-A series, this insert measures 3.25 inches in diameter and carries a TiN (titanium nitride) coating that extends cutting edge life by reducing friction and heat buildup at the tool-workpiece interface. With a material grade of C5 and a thickness of 0.4375 inches, it is built to handle demanding through-hole and blind-hole drilling applications. Machinists and tool room professionals install this insert into compatible spade drill holders as a consumable cutting element.

The S01611 is suited for applications requiring drilled hole diameters at or above 3.0 inches, making it appropriate for heavy-duty metalworking in job shops, production machining, and industrial maintenance environments. It fits Seat Size 6 holders in the T-A system. The fractional inch measurement system and standard geometry make it a straightforward drop-in cutting insert for shops already running T-A series tooling.

Key Features

• 3.25-inch cutting diameter for large-bore drilling applications
• TiN coating reduces friction and extends tool life in steel and ferrous materials
• High speed steel construction with C5 material grade for toughness and edge retention
• T-A series design for use with compatible Seat Size 6 spade drill holders
• 0.4375-inch insert thickness for rigid, stable cutting performance
• Fractional inch system sizing for straightforward holder compatibility verification

Compatibility

Designed for use with T-A series spade drill holders accepting a Seat Size 6 insert. Suitable for drilling diameters of 3.0 inches and above per the T-A series specification.

Installation Notes

Installation is performed by qualified machinists or tool room technicians. Ensure the spindle is fully stopped and the machine is locked out before changing inserts. Seat the insert fully and evenly into the holder pocket and secure with the appropriate fastener to manufacturer torque specifications listed in the holder documentation. Inspect the seating surface for chips or debris before installation to prevent insert rocking or premature breakage.