3M Forked Spindle 45121, 3 in x 1/16 in x 3/4 in x 1/4 in, Case of 10

• 1/4” shank diameter for use in ¼” collets
• Forked spindle enables operators to access tight spaces and hard-to-reach areas that may otherwise be inaccessible
• May be used with various coated abrasive strips, sized to fit the slot at the end of the spindle
• Primarily used to clean or polish inner diameters and other tight areas
• Spindle accessory attaches to a variety of rotary tools, including die grinders (sold separately)

The 3M Forked Spindle was designed to bring those seemingly hard-to-reach workpiece areas within reach. It can be tough to access internal diameters with other types of abrasives – be they wheels, brushes or discs, and that’s why this accessory was created. When you find yourself in a tight corner or hole, turn to the 3M Forked Spindle.

Access Hard-to-Reach Areas
Oftentimes, operators aspire to achieve smooth finishes, polishes and seamless welds on their workpieces. Yet, intricate parts can present a challenge: how do you navigate small corners and tight spaces? The 3M Forked Spindle is made to help operators access these hard-to-reach areas. That way, no workpiece area need go unfinished.

Tips for Optimal Use
Using the 3M Forked Spindle is simple. Much like a mandrel, it fastens to a die grinder or other rotary tool (sold separately). Its design differs from a mandrel, however, because it has a fork-shaped end. Instead of extending the reach of a disc – like a mandrel – the forked spindle itself gets in, over and around the workpiece.

As the spindle rotates, the coated abrasive strip that is attached to the spindle rotates too. The rapid rotation of the coated abrasive strip and / or utility cloth helps clean and polish inner diameters and other tight areas. To attach the abrasive strip, operators simply need to cut it to size and slip it into the slot at the end of the spindle. Operators can choose the utility cloth strip that is best suited to their specific application, whether opting for a more aggressive abrasive with coarse-grade silicon carbide mineral or a softer abrasive with fine-grade aluminum oxide mineral. The 3M Forked Spindle has a slot width of 1/16” and slot length of ¾”.

In the end, this abrasive accessory was designed to help operators tackle the tough areas and make sure all details are accounted for – even the small ones.

3M Forked Spindle Model

The 3M Forked Spindle 45121 is designed to help operators reach tight spaces with ease. This model is part of 3M’s line of rotary tool accessories, made to improve access and precision in detailed work.

Its forked design allows it to fit into areas that other abrasives can’t reach. This makes the 45121 ideal for polishing and cleaning inner diameters where smooth finishes are critical.

Precise Dimensions Included

This spindle measures 3 inches long with a 1/16 inch slot width, a 3/4 inch slot length, and a 1/4 inch shank diameter. These exact dimensions ensure compatibility with specific abrasive strips and rotary tools.

The 1/4 inch shank diameter fits standard 1/4 inch collets, making it easy to attach to die grinders and other rotary tools. The slot size is designed to hold coated abrasive strips securely during use.

Versatile Abrasive Compatibility

The forked spindle works with various coated abrasive strips sized to fit its slot. Operators can choose abrasive strips with different grades, such as coarse silicon carbide or fine aluminum oxide, depending on the task.

By cutting abrasive strips to size and slipping them into the slot, users can customize the tool for cleaning or polishing inner diameters and other tight areas. This flexibility makes it suitable for many applications.

Effective Tight Area Access

The forked spindle is specifically designed to reach hard-to-access spots on workpieces. Its shape allows it to get in, over, and around parts that are difficult to reach with other abrasives.

This makes it a valuable tool for operators aiming for smooth finishes and seamless welds in intricate parts. The spindle’s design helps ensure no area goes unfinished, improving overall quality.

Pack Size And Usage

This product comes in a case of 10 pieces, providing enough spindles for multiple projects or replacements. Having a pack of 10 ensures operators can maintain productivity without frequent reordering.

Each spindle attaches easily to rotary tools like die grinders, which are sold separately. This setup allows for quick changes and efficient work on detailed polishing or cleaning tasks.