Collis Tool 70441 3/4 Inch Pipe Tap MT4 Taper Shank

Product Description

The COLLIS TOOL 70441 is a 3/4 inch pipe tap designed for cutting internal pipe threads in metal workpieces. It features an MT4 taper shank for secure mounting in compatible tapping drivers and machine spindles, and delivers a tap entry depth of 1.63 inches with a 2-3/8 inch projection. The tap shank diameter is 0.906 inches and the tap shank square measures 0.679 inches, providing positive drive engagement during tapping operations. Weighing 2.3 pounds, this is a heavy-duty tool suited for machine shops, maintenance facilities, and industrial trade applications where accurate pipe thread cutting is required.

This tap is used for cutting 3/4 inch pipe threads in production and maintenance machining environments. Typical applications include threading pipe ports in manifolds, fittings, housings, and equipment bodies where a standard pipe thread is required for fluid or gas connections. The MT4 taper shank mounts directly into machine tool spindles or tapping drivers equipped with the corresponding Morse taper socket, making it appropriate for drill press, lathe, or vertical mill setups.

Key Features

• 3/4 inch pipe tap for cutting standard internal pipe threads
• MT4 taper shank for positive, concentric drive in compatible machine spindles
• 1.63 inch tap entry depth for adequate thread engagement in standard workpieces
• 2-3/8 inch projection from shank to tap face for clearance in deep setups
• 0.906 inch tap shank diameter and 0.679 inch tap shank square for secure driver fit

Compatibility

Designed for use with machine tool spindles and tapping drivers fitted with an MT4 (Morse Taper 4) socket. Suited for applications requiring 3/4 inch pipe thread cutting in metal workpieces.

Installation Notes

This tap is installed by a machinist or maintenance technician into an MT4-compatible spindle or tapping driver. Ensure the machine is fully de-energized and brought to a complete stop before mounting or removing the tap. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve clean thread form. Always verify tap alignment with the workpiece bore before beginning the threading operation to avoid tap breakage.