Allied 1C20T-0017 Spade Drill Insert 17/32 in 132 Deg Tin Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C20T-0017 is a carbide spade drill insert designed for use in T-A series spade drill bodies. It features a 17/32-inch cutting diameter and a 132-degree point angle suited for entry into a wide range of workpiece materials. The insert is manufactured from C2 (K20) grade carbide and carries a PVD-applied TiN coating that reduces friction and extends edge life. With a 0.125-inch thickness and Seat Size 0, this insert is a direct-fit component for compatible T-A series holders. Machinists and tool-and-die professionals install this insert as a replaceable cutting element in production drilling operations.

This insert is rated for use in stainless steel, cast iron, non-ferrous metals, and superalloys including titanium, making it a versatile choice across ferrous and difficult-to-machine materials. It is commonly deployed in CNC machining centers and manual drill presses where a modular spade drilling system is in use. Typical applications include through-hole and blind-hole drilling in industrial manufacturing, aerospace component machining, and general metalworking. The fractional inch sizing makes it compatible with inch-system tooling setups.

Key Features

• 17/32-inch cutting diameter with Seat Size 0 for T-A series spade drill bodies
• 132-degree point angle optimized for entry into hard and abrasion-resistant materials
• C2 (K20) grade carbide substrate for hardness and wear resistance
• PVD TiN coating reduces heat buildup and extends insert service life
• Rated for stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• 0.125-inch insert thickness; fractional inch measurement system

Compatibility

Designed for use with T-A series spade drill bodies accepting Seat Size 0 inserts. Confirm holder seat size and clamping screw compatibility before installation. No additional model-specific compatibility data was provided by the manufacturer for this listing.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is locked out before changing inserts. Seat the insert fully against the holder pocket and torque the clamping screw per the T-A series holder documentation — do not over-tighten, as carbide inserts are brittle under side-loading. Inspect the seat for chips or debris before seating a new insert to prevent premature edge failure.