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

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.
Special Price $4.05 Regular Price $4.76
UPC 00051144451210
3M ID 7100009224
Packaging Each
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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.


  • Forked spindle enables operators to access tight spaces and hard-to-reach areas that may otherwise be inaccessible
  • Spindle accessory attaches to a variety of rotary tools, including die grinders (sold separately)
  • May be used with various coated abrasive strips, sized to fit the slot at the end of the spindle
  • 1/4” shank diameter for use in ¼” collets
  • Primarily used to clean or polish inner diameters and other tight areas
More Information
3M ID 7100009224
Part number 45121
Keywords Abrasives, replacement parts, maintenance
Global Product Hierarchy Tools & Equipment > Power Tools > Power Tool Parts & Accessories
Abrasive Material Non Pertinent
Backing Material Non Pertinent
Product Type simple
Quantity 0
Trademark 1 3M™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 1825
Base - Billing Unit EA
Base - Customary Height Dimension 7.5
Base - Customary Length Dimension 0.25
Base - Customary Width Dimension 4
Base - Metric Gross Weight 13.2 G
Base - Metric Height Dimension 19.05 CM
Base - Metric Length Dimension 0.635 CM
Base - Metric Width Dimension 10.16 CM
Base - Item Quantity 1
Base - Unit EA
Consumer - Billing Unit EA
Consumer - Customary Cubic Dimension 7.505920523652071 ci
Consumer - Customary Gross Weight 0.02910101860840384 lbs
Consumer - Customary Net Weight 0.028999605967798797 lbs
Consumer - Customary Height Dimension 7.5 in
Consumer - Customary Length Dimension 0.25 in
Consumer - Customary Width Dimension 4.0 in
Consumer - Metric Cubic Dimension 0.123 CDM
Consumer - Metric Net Weight 13.154 G
Consumer - Metric Height Dimension 19.05 CM
Consumer - Metric Length Dimension 0.635 CM
Consumer - Metric Width Dimension 10.16 CM
Consumer - Item Quantity 1
Consumer - Total Unit Quantity 1
Consumer - Previous Packaging Level Quantity 1
Consumer - Item Unit PCS
Consumer - Unit EA
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 182.57401081731297 ci
Shipper - Customary Gross Weight 0.5069992689691848 lbs
Shipper - Customary Net Weight 0.28999605967798797 lbs
Shipper - Customary Height Dimension 4.6 in
Shipper - Customary Length Dimension 6.3 in
Shipper - Customary Width Dimension 6.3 in
Shipper - Metric Cubic Dimension 2991.852 CCM
Shipper - Metric Weight 229.971 G
Shipper - Metric Net Weight 131.54 G
Shipper - Metric Height Dimension 11.684 CM
Shipper - Metric Length Dimension 16.002 CM
Shipper - Metric Width Dimension 16.002 CM
Shipper - Item Quantity 10
Shipper - Total Unit Quantity 10
Shipper - Previous Packaging Level Quantity 10
Shipper - Previous Packaging Level Unit BAG
Shipper - Item Unit PCS
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 93549.3996972246 ci
Pallet - Customary Gross Weight 227.0761300504239 lbs
Pallet - Customary Net Weight 109.61824600356483 lbs
Pallet - Customary Height Dimension 46.4 in
Pallet - Customary Length Dimension 48.0 in
Pallet - Customary Width Dimension 42.0 in
Pallet - Metric Cubic Dimension 1.533 M3
Pallet - Metric Net Weight 49.722 KG
Pallet - Metric Height Dimension 117.856 CM
Pallet - Metric Length Dimension 121.92 CM
Pallet - Metric Width Dimension 106.68 CM
Pallet - Item Quantity 3780
Pallet - Total Unit Quantity 3780
Pallet - Previous Packaging Level Quantity 378
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit PCS
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 9
Pallet - Shipping Container Per Layer Quantity 42
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