Collis Tool 70503 MT5 Taper Shank Tapping Driver

Product Description

The COLLIS TOOL 70503 is an MT5 taper shank standard tapping driver designed for precision tapping operations on metalworking equipment. This driver accepts a 1-3/4 inch tap and provides a tap entry depth of 2.38 inches, making it well suited for deeper threading applications. The taper shank mount ensures a secure, self-holding connection in compatible machine spindles. With a 3-1/4 inch projection and a tap shank diameter of 1.43 inches, the 70503 delivers stable tool engagement during high-torque tapping cycles. Licensed machinists and toolroom technicians are the typical installers of this tooling.

This tapping driver is used in vertical machining centers, drill presses, and turret lathes equipped with an MT5 spindle taper. It is suited for production tapping in steel, cast iron, and similar ferrous materials where repeatable thread quality is required. The standard tapping driver style accommodates straight shank taps within the specified shank size range. Applications span job shop and production environments in industrial and commercial facilities.

Key Features

• MT5 taper shank provides a rigid, self-holding fit in compatible machine spindles
• Accepts 1-3/4 inch taps with a tap shank diameter of 1.43 inches
• 2.38 inch tap entry depth supports deeper threading operations
• 3-1/4 inch projection allows clearance in standard machine setups
• Tap shank square of 1.072 inches ensures positive rotational drive

Compatibility

Designed as an OEM-style tapping driver for use in machine tool spindles with an MT5 Morse taper bore accepting standard straight shank taps.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing the taper shank driver. Clean the spindle bore and taper shank thoroughly before insertion to ensure full contact and prevent runout. Follow the machine manufacturer guidelines and applicable shop safety standards when setting tool projection and securing the tap.