Allied Machine 24020S-004I Indexable Spade Drill 4MT Taper

Product Description

The ALLIED MACHINE AND ENGINEERING 24020S-004I is an indexable spade drill body designed for deep-hole drilling operations in a wide range of workpiece materials. Built on the T-A 2 series platform, this straight-flute holder accepts spade drill inserts and delivers through-coolant capability via a radial coolant entry design. The 4MT taper shank mounts directly to standard Morse taper spindles found on drill presses, lathes, and machining centers. It covers a diameter range of 31/32 inch to 1-3/8 inches with a maximum drill depth of 7-3/8 inches, making it suitable for general-purpose production and maintenance machining tasks. The steel body construction provides the rigidity needed for consistent insert seating and hole quality.

This spade drill body is suited for general-purpose metal removal in job shops, production facilities, and maintenance machining environments. The universal material compatibility rating allows use across steel, cast iron, stainless steel, aluminum, non-ferrous alloys, and superalloys. The 4MT taper shank makes it compatible with a wide installed base of manual and CNC drilling equipment. The straight flute design promotes chip evacuation in through-coolant applications. Machinists and toolroom technicians working with standard Morse taper spindle equipment will find this holder a direct-fit solution for indexable spade drilling without the need for adapter sleeves.

Key Features

• Diameter range: 31/32 inch to 1-3/8 inches for versatile insert sizing
• Maximum drill depth of 7-3/8 inches for deep-hole applications
• 4MT taper shank for direct mounting to Morse taper spindles
• Through-coolant capable with 2-radial entry coolant design and 1/8 inch NPT coolant port threads
• Straight flute geometry promotes chip clearance and coolant flow
• T-A 2 series platform compatible with 2T-3SR rotary coolant adapter
• Universal workpiece material rating covering steel, cast iron, aluminum, stainless, non-ferrous, and superalloys

Compatibility

Designed for use with T-A 2 series spade drill inserts. Compatible with 2T-3SR rotary coolant adapters. Fits standard 4MT Morse taper spindle machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully powered down and locked out before mounting or removing the taper shank. Clean the taper bore and shank surfaces thoroughly before seating to ensure proper contact and runout. Verify coolant port connections and thread compatibility before applying through-spindle or external coolant supply.