Allied Machine 220Y0S-075L Indexable Spade Drill 3/8-27/64 in

Product Description

The ALLIED MACHINE AND ENGINEERING 220Y0S-075L is an indexable spade drill designed for precision hole-making in a wide range of workpiece materials. It accepts interchangeable spade drill inserts and is built around a 3/4-inch flatted cylindrical shank that seats securely in standard drill holders. The drill covers a diameter range of 3/8 to 27/64 inches with a maximum drill depth of 1-1/4 inches, making it well suited to short-reach applications. Through-coolant capability with a 1/8-inch NPT axial concentric entry port supports chip evacuation and tool life in production environments. Machinists and toolroom technicians install this tool in CNC machining centers and manual drill presses where repeatable, close-tolerance holes are required.

The 220Y0S-075L is rated for universal primary workpiece material compatibility, covering steel, stainless, cast iron, non-ferrous, high-temp alloys, and hardened materials as indicated by material codes P, M, K, N, S, and H. The short-length configuration keeps the tool rigid in shallow-hole applications, reducing deflection and improving hole location accuracy. Typical installation scenarios include production drilling on horizontal and vertical machining centers where quick insert indexing is preferred over regrinding solid drills. The Series T-A Y designation identifies the correct replacement insert family for this holder.

Key Features

• Diameter range of 3/8 to 27/64 inches covers common small-bore production requirements
• Through-coolant via 1/8-inch NPT axial concentric entry for improved chip flushing and tool life
• Flatted cylindrical shank (3/4 inches diameter) provides positive drive and prevents rotation in the holder
• Straight flute geometry supports straightforward chip evacuation in through-coolant setups
• Short-series body length reduces overhang and improves rigidity at shallow depths
• Universal material code rating (P, M, K, N, S, H) makes this holder suitable across a broad range of workpiece materials

Compatibility

Compatible with Series T-A Y indexable spade drill inserts. Rated for universal primary workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, high-temperature alloys, and hardened materials (material codes P, M, K, N, S, H).

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before inserting or indexing spade drill inserts, ensure the machine spindle is fully de-energized and locked out per applicable safety procedures. Confirm the flatted shank is properly seated and the set screw is torqued per the toolholder manufacturer specification before running. Verify coolant supply pressure and flow rate are appropriate for the holder before initiating a drilling cycle.