Allied Machine 24030S-150L Indexable Spade Drill 1-7/8 in

Product Description

The ALLIED MACHINE AND ENGINEERING 24030S-150L is an indexable spade drill designed for precision hole-making in a wide range of workpiece materials. Part of the T-A 3 series, it accepts interchangeable spade blade inserts and is built from steel construction for rigidity under load. The drill accommodates diameters from 1-13/32 inches to 1-7/8 inches with a maximum drill depth of 8-1/4 inches. Through-coolant delivery via axial concentric and radial ports (Coolant Entry Style Code 3) keeps the cutting zone clear and helps manage heat during deep-hole operations. The 1-1/2 inch flatted shank provides positive drive engagement in standard drill holders.

This drill is suited for general-purpose production drilling in machining centers and CNC drilling operations where repeatable accuracy and blade interchangeability reduce tooling downtime. The straight flute geometry supports efficient chip evacuation in through-hole and blind-hole applications. The universal primary workpiece material classification (P, M, K, N, S, H) makes it applicable across steel, stainless, cast iron, non-ferrous, superalloys, and hardened materials, depending on blade selection. It is a standard-length tool appropriate for medium-depth bore work in both horizontal and vertical machining setups.

Key Features

• Drill diameter range: 1-13/32 inches to 1-7/8 inches for versatile bore sizing
• Through-coolant capable with axial concentric and radial coolant entry (1/4 inch NPT coolant hole thread)
• T-A 3 series indexable design allows blade insert changes without removing the body from the holder
• Straight flute configuration promotes controlled chip flow in deep-hole drilling
• Flatted cylindrical shank (1-1/2 inches diameter, 4 inches shank length) for positive anti-rotation drive
• Universal workpiece material compatibility across ISO material groups P, M, K, N, S, and H

Compatibility

Designed as an OEM-style T-A 3 series spade drill body compatible with ALLIED MACHINE AND ENGINEERING T-A 3 series indexable spade blade inserts sized for the 1-13/32 inches to 1-7/8 inches diameter range. Verify blade series and diameter range match before ordering inserts.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC setup technician familiar with indexable tooling systems. Ensure the machine spindle and coolant system are fully de-energized and locked out before mounting or changing the drill body or blade insert. Confirm the flatted shank is fully seated and the set screw or collet is torqued to the toolholder manufacturer specification. Connect the through-coolant supply to the 1/4 inch NPT coolant port and verify flow before initiating a cut.