Collis Tool 70407 Standard Tapping Driver MT4 Taper Shank

Product Description

The COLLIS TOOL 70407 is a standard tapping driver designed for use with 1-1/2 inch taps in machine tool applications. It features an MT4 (Morse Taper 4) taper shank for secure mounting in compatible spindles and provides a tap entry depth of 2.31 inches with a 3-inch projection from the spindle face. The tap shank diameter is 1.233 inches and the tap shank square measures 0.925 inches. This driver is suited for machining environments where consistent, repeatable tapping operations are required, and is typically installed by machinists or tool-and-die professionals on drill presses, milling machines, or machining centers.

The 70407 is intended for production and job-shop environments requiring a reliable tapping driver for 1-1/2 inch taps. The MT4 taper shank fits standard MT4 spindle sockets found on a wide range of drilling and milling equipment. The 3-inch projection accommodates workpiece clearance needs common in standard tapping setups. This driver handles the torque transmission demands associated with larger tap sizes in ferrous and non-ferrous materials.

Key Features

• MT4 Morse Taper shank for secure, self-holding spindle mounting
• Accepts 1-1/2 inch taps with a 1.233 inch tap shank diameter
• 2.31 inch tap entry depth for controlled engagement
• 3-inch projection provides workpiece clearance in standard setups
• Tap shank square of 0.925 inches ensures positive torque transfer without slip

Compatibility

Designed as a standard tapping driver for use with 1-1/2 inch taps in MT4 taper shank spindles on drilling and milling machine tools.

Installation Notes

Installation is performed by machinists or qualified toolroom personnel. Power down and de-energize the machine spindle completely before mounting or removing the taper shank driver. Clean the MT4 taper bore and shank surfaces thoroughly before seating to ensure proper fit and prevent fretting. Follow the machine manufacturer guidelines and applicable shop safety procedures when securing the driver and loading the tap.