Milwaukee 48-66-6503 B Taper Bit Adapter Spline Drive

Product Description

The MILWAUKEE 48-66-6503 is a B taper bit adapter designed to allow spline drive rotary hammers to accept B taper shank bits. The all-metal construction is built to withstand heavy daily use on the jobsite. At 10.5 inches in length and 1.09 pounds, it is a compact, durable accessory that extends the utility of an existing spline drive rotary hammer without requiring a separate dedicated tool. Licensed contractors and trade professionals use this adapter to expand their bit inventory compatibility on active job sites.

This adapter is suited for professional use in construction, demolition, and concrete drilling applications where a spline drive rotary hammer is the primary tool. It is particularly useful when a crew already has a stock of B taper bits and wants to avoid duplicating tools. The adapter fits into the spline drive chuck and accepts standard B taper shank bits, making it a practical solution for residential and commercial jobsites alike.

Key Features

• Converts a spline drive rotary hammer to accept B taper shank bits
• All-metal construction rated for heavy daily jobsite use
• Compact profile at 10.5 inches long and 1.55 inches wide
• Lightweight at 1.09 pounds for easy handling
• Sold individually — one adapter per unit

Compatibility

Designed for use with spline drive rotary hammers that accept B taper shank bits. No specific model compatibility data was provided in the product input.

Installation Notes

This adapter should be installed by a qualified operator familiar with rotary hammer chuck systems. Always power down and disconnect the rotary hammer from its power source before inserting or removing the adapter. Ensure the adapter is fully seated in the spline drive chuck and locked before operating the tool. Do not use the adapter with impact drivers or standard drill chucks.

Technical Specifications

• Length: 10.5 inches
• Width: 1.55 inches
• Height: 1.55 inches
• Weight: 1.09 pounds
• Material: All-metal
• UPC: 0045242158287
• Sold As: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-66-6503