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Aluminum Oxide 16 grit A16 spec is recommended for ferrous metal grinding. The A16 in an "O" hardness will provide rapid stock removal. The A16 in a "Q" hardness will provide longer life but could cut slower.  

Silicon Carbide 16 grit C16 specs are for concrete, stone, and nonferrous metals. For granite/marble grinding we recommend Type 6 cups. Click on T-6 cups in the left margin for granite/marble cups.  

For foundry grinding of cast and ductile iron we recommend our FA14-Q4B specification. This is combination grain cup specially formulated for iron grinding. There are cups in this grade listed in the table below. Contact us for other sizes or high usage quotes.

The cups listed on this page have the standard metal back.  For cups with the full metal back click on the category 1201 in the left margin.;

The cups listed below have the standard steel back plate.  Contact us large order quantites.

T-11 Flared Cups - Standard Back Style
Code Name Price  
904018 4/3 x 2 x 5/8-11 T-11 flared cup - A16-O4B - 9070 RPM - Std Metal Back $10.56
904020 4/3 x 2 x 5/8-11 T-11 flared cup - A16-Q4B - 9070 RPM - Std Metal Back $10.56
905020 4/3 x 2 x 5/8-11 T-11 flared cup - C16-PB - 9070 RPM - Std Metal Back $10.74
904080 5/4 x 2 x 5/8-11 T-11 flared cup - A16-O4B - 7260 RPM - Std Metal Back $12.73
905070 5/4 x 2 x 5/8-11 T-11 flared cup - C16-PB - 7260 RPM - Std Metal Back $14.07
904140 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - A16-O4B - 6050 RPM - Std Metal Back $14.24
904150 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - A16-Q4B - 6050 RPM - Std Metal Back $14.24
904143 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - A16-Q4B - 6050 RPM - Std Metal Back $16.41
905140 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - C16-PB - 6050 RPM - Std Metal Back $15.44
904238 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - FA14-Q4B - 6050 RPM - Std Metal Back $17.59
904235 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - FA14-Q4B - 6050 RPM - Std Metal Back $17.59
904513 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - NZ14-94B - 6050 RPM - Std Metal Back $23.28
904023 4/3 x 2 x 5/8-11 T-11 flared cup - A24-Q4B - 9070 RPM - Std Metal Back $10.56
904177 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - A16-OB - 6050 RPM - Std Metal Back $14.24
904180 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - A24-Q4B - 6050 RPM - Std Metal Back $14.24
904141 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - A16-O4B - 6050 RPM - Std Metal Back $16.41
904502 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZA14-4RB - 6050 RPM - Std Metal Back $23.28
904544 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ16Q4B - 6050 RPM - Std Metal Back $23.28
904540 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ16O4B5D - 6050 RPM - Std Metal Back $23.28
904545 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ24O4B5D - 6050 RPM - Std Metal Back $23.28
905040 4/3 x 2 x 5/8-11 T-11 flared cup - C16-PB - 9070 RPM - Full Metal Back $12.38
904100 5/4 x 2 x 5/8-11 T-11 flared cup - A16-Q4B - 7260 RPM - Full Metal Back $14.64
904094 5/4 x 2 x 5/8-11 T-11 flared cup - A16-O4B - 7260 RPM - Full Metal Back $14.64
905120 5/4 x 2 x 5/8-11 T-11 flared cup - C16-PB - 7260 RPM - Full Metal Back $15.71
904190 6/4-3/4 x 2 x 5/8-11 T-11 flared cup - A16-Q4B - 6050 RPM - Full Metal Back $16.18
904515 5/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ24-04D5D - 6050 RPM - Full Metal Back $22.82
904535 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ24-04B5D - 6050 RPM - Full Metal Back $25.32
904550 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ16-O4B5D - 6050 RPM - Full Metal Back $25.32
904555 6/4-3/4 x 2-1/2 x 5/8-11 T-11 flared cup - NZ24-O4B5D - 6050 RPM - Full Metal Back $25.32