Skip to main content

Norton® Gemini® 66253049081 Saucer Shape Depressed Center Wheel, 9 in Dia x 1/4 in THK, 7/8 in Center Hole, 24 Grit, Aluminum Oxide Abrasive



Norton® Gemini® Depressed Center Wheel, Saucer Shape, 9 in Wheel Diameter, 1/4 in Wheel Thickness, 7/8 in Center Hole, Arbor Connector, 24 Grit, Extra Coarse Grade, Aluminum Oxide Abrasive, Wheel Type Number: Type 28, 6600 rpm Maximum, Resin Bond, Applicable Materials: Stainless Steel, Metal and Steel, Specifications Met: ANSI Specified

Depressed center wheels may also be referred to as raised hub wheels or by their shape designation Type 27, 28 or 29, with Type 27 being the most popular. The depressed center design allows the flange/lock nut to recess within the wheel so that it can be used for various grinding and cutting applications. Depressed center wheels are designed to handle the most severe right angle grinding applications from heavy stock removal to rough blending. More recently, depressed center wheels have been designed for cut-off applications when the tool is proper designed with flanges and guards. While large right angle grinders (7 in & 9 in) have been around for many years, small or mini grinders that handle 4 in, 4-1/2 in and 5 in wheels have made this machine, and wheel category, the most popular in power tools.


Abrasive Material Aluminum Oxide
Applicable Materials Stainless Steel, Metal and Steel
Bond Type Resin
Center Hole Size 7/8 in
Connector Type Arbor
Grade Extra Coarse
Grit 24
Maximum Speed 6600 rpm
Specifications Met ANSI Specified
Type Saucer Shape
Wheel Diameter 9 in
Wheel Thickness 1/4 in
Wheel Type Number Type 28

Country of Origin: United States

Standards and Approvals: ANSI B7.1

Cutting and Grinding


  • Premium aluminum oxide for consistent performance at a competitive price
  • 1/4 in are designed for offhand stock removal, smoothing welds and beveling
  • Blend of hardness and bond to provide the best mix of cut rate and life
  • Consistent performance and low initial price
  • With quick-change hub for tool free wheel changes to increase productivity
  • Angle grinder tool compatibility
  • Consistent performance at a competitive price
  • Contain <0.1% iron, sulfur or chlorine for rust-free and corrosion-free result, will not contaminate stainless steel
  • Grind aluminum and soft metals without loading
  • Contain no wax or rubber fillers

Recently Viewed Items

Loading recently viewed products...
Loading product details...