Apex AM-4MM Power Screwdriver Bit Hex 4mm 1-15/16 in

Product Description

The APEX AM-4MM is a hex-drive power screwdriver bit designed for use with power screwdrivers and impact-rated drive tools. It features a 4mm hex size and a 0.25 inch drive, with an overall length of 1-15/16 inches. Built for single-piece use in production, assembly, and service applications, this bit is suited for electricians, HVAC technicians, plumbers, and general trade professionals who drive M8 set screws or fasteners requiring a 4mm hex drive. At 0.024 pounds, it is a lightweight, single-piece accessory built for repeated power tool use.

This bit is appropriate for residential and commercial service work where M8 set screws or 4mm hex fasteners are common, including equipment panel assembly, motor mounting, and component securing tasks. It fits standard 0.25 inch hex-shank power tool chucks, making it compatible with most cordless and pneumatic screwdrivers used in the trades. The 1-15/16 inch overall length provides enough reach for recessed fastener access without sacrificing torque transfer.

Key Features

• 4mm hex drive size for M8 set screws and compatible fasteners
• 0.25 inch shank fits standard power screwdriver and impact driver chucks
• 1-15/16 inch overall length for moderate-depth fastener access
• Single-piece format for individual replacement or kit supplementing
• Lightweight at 0.024 pounds for low tool-balance impact

Compatibility

Designed for use with power screwdrivers and drive tools accepting a standard 0.25 inch hex shank. Suitable for driving M8 set screws in typical trade service and assembly applications.

Installation Notes

Insert the bit fully into the tool chuck and confirm it is seated and locked before applying power. Ensure the fastener recess is clean and free of debris before driving to prevent cam-out and bit damage. Always power down or disconnect the tool before changing bits. Follow applicable workplace safety standards when operating power tools.