Collis Tool 70334 1/2 Inch Pipe Tap MT3 Taper Shank Driver

Product Description

The COLLIS TOOL 70334 is a standard tapping driver designed for 1/2 inch pipe tapping applications. It features an MT3 taper shank for secure mounting in compatible drill presses and tapping machines. The tap entry depth measures 1.31 inches, and the projection from the taper shank nose is 2-5/16 inches. The tap shank diameter is 0.687 inches with a tap shank square of 0.515 inches. This driver is used by machinists and pipefitters who need repeatable, accurate pipe thread tapping in metal fabrication and mechanical piping work.

The 70334 is suited for production and repair tapping operations where a 1/2 inch pipe tap must be driven at consistent depth and alignment. The MT3 taper shank fits standard machine spindles found in drill presses and dedicated tapping machines. It is appropriate for both shop floor fabrication and field repair scenarios where internal pipe threads are being cut in metal pipe fittings, flanges, or manifolds.

Key Features

• MT3 taper shank for positive engagement in standard machine spindles
• 1.31 inch tap entry depth for controlled thread start
• 2-5/16 inch projection provides clearance for 1/2 inch pipe tap operation
• 0.687 inch tap shank diameter and 0.515 inch tap shank square for secure tap retention
• Single-piece package quantity suitable for individual replacement or tooling stock

Compatibility

Designed for use with 1/2 inch pipe taps and compatible with machine spindles accepting an MT3 taper shank. Consult your tapping machine or drill press documentation to confirm MT3 taper acceptance before installation.

Installation Notes

Installation is performed by machinists or pipefitters using a tapping machine or drill press equipped with an MT3 spindle. Power down and lock out the machine before seating or removing the taper shank driver. Ensure the taper surfaces are clean and free of chips or burrs before seating to prevent spindle damage. Follow applicable shop safety procedures and verify tap alignment before initiating the tapping cycle.