Collis Tool 74420 Split Sleeve Tapping Driver MT4

Product Description

The COLLIS TOOL 74420 is a split sleeve tapping driver designed for use with a 3/4 inch tap on MT4 taper shank machines. It accepts a tap shank diameter of 0.59 inches and a tap shank square of 0.442 inches, providing a secure, positive drive during tapping operations. The 3/8 inch projection and 1-51/64 inch tap entry depth allow controlled engagement in a range of workpiece materials and configurations. This driver is installed and used by machinists and tool and die professionals working on drill presses, mills, and tapping machines equipped with MT4 spindles.

This tapping driver suits production and maintenance machine shop environments where consistent tap alignment and depth control are required. It is intended for use with standard 3/4 inch taps in metalworking applications. The split sleeve design allows for quick tap changes without full disassembly, reducing downtime during repetitive tapping cycles. Compatible with MT4 taper shank spindles commonly found on vertical mills and bench-top tapping machines in industrial and job shop settings.

Key Features

• MT4 taper shank mounts directly to compatible machine spindles without adapters
• Split sleeve design allows fast tap changes during production runs
• 1-51/64 inch tap entry depth supports controlled tap engagement
• 3/8 inch projection positions the tap for accurate entry
• 0.442 inch tap shank square provides a positive, torque-resistant drive connection
• Accepts 3/4 inch tap shank diameter for standard tap sizing

Compatibility

Designed as an OEM-style tapping driver for MT4 taper shank spindles used with 3/4 inch taps in standard metalworking machine tool applications.

Installation Notes

Installation is performed by a machinist or qualified tool room technician. The machine spindle must be fully powered down and locked out before mounting or removing the driver. Confirm the MT4 taper and spindle bore are clean and free of chips or burrs before seating the shank. Verify tap shank diameter and square dimensions match the driver specifications before use to avoid slippage or tap damage.