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    110 Products
    About Polishing Stones and Bobs
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    Match grit size and micron ratings to the texture, appearance, and flatness you need to achieve.

    Polishing Stones for EDM Scale Removal

    Remove the tough scale left by the EDM (electrical discharge machining) process. These stones are harder than standard aluminum oxide polishing stones but are not so hard that they will scratch or gouge your workpiece. They abrade slowly, so you can control how much material you remove.
    Polish by hand or use these stones in power tools with a compatible holder. You’ll also need lubricant.
    Straight Square
    Image of Product. Front orientation. Polishing Stones. Polishing Stones for EDM Scale Removal, Straight Square.
    Image of Product. Front orientation. ZoomedIn view. Polishing Stones. Polishing Stones for EDM Scale Removal, Straight Square.
    Lg.
    Wd.
    Thk.
    Color
    Lubrication
    Each
    Aluminum Oxide—For Steel
     
    100 Grit (For Smooth Finish)
    6"5/32"5/32"BrownRequired47465A31100000
    6"1/4"1/4"BrownRequired47465A3120000
    6"3/8"3/8"BrownRequired47465A7430000
     
    120 Grit (For Smooth Finish)
    6"5/32"5/32"BrownRequired47465A8950000
    6"1/4"1/4"BrownRequired47465A8960000
    6"3/8"3/8"BrownRequired47465A7440000
     
    150 Grit (For Smooth Finish)
    6"5/32"5/32"BrownRequired47465A8890000
    6"1/4"1/4"BrownRequired47465A3130000
    6"3/8"3/8"BrownRequired47465A7450000
     
    180 Grit (For Smooth Finish)
    6"5/32"5/32"BrownRequired47465A3140000
    6"1/4"1/4"BrownRequired47465A3150000
    6"3/8"3/8"BrownRequired47465A7460000
     
    220 Grit (For Smooth Finish)
    6"5/32"5/32"BrownRequired47465A3160000
    6"1/4"1/4"BrownRequired47465A3170000
    6"3/8"3/8"BrownRequired47465A7470000
     
    320 Grit (For Extra-Smooth Finish)
    6"5/32"5/32"BrownRequired47465A3180000
    6"1/4"1/4"BrownRequired47465A3190000
    6"3/8"3/8"BrownRequired47465A7480000
     
    400 Grit (For Extra-Smooth Finish)
    6"5/32"5/32"BrownRequired47465A3210000
    6"1/4"1/4"BrownRequired47465A3220000
    6"3/8"3/8"BrownRequired47465A7490000
     
    600 Grit (For Polished Finish)
    6"5/32"5/32"BrownRequired47465A3230000
    6"1/4"1/4"BrownRequired47465A3240000
    6"3/8"3/8"BrownRequired47465A7510000
     
    800 Grit (For Polished Finish)
    6"5/32"5/32"BrownRequired47465A9010000
    6"1/4"1/4"BrownRequired47465A2570000
    6"3/8"3/8"BrownRequired47465A7520000
     
    1000 Grit (For Polished Finish)
    6"5/32"5/32"BrownRequired47465A9020000
    6"1/4"1/4"BrownRequired47465A2580000
    6"3/8"3/8"BrownRequired47465A7530000
     
    1200 Grit (For Polished Finish)
    6"5/32"5/32"BrownRequired47465A9030000
    6"1/4"1/4"BrownRequired47465A2590000
    6"3/8"3/8"BrownRequired47465A7540000
     
    Accessories for Stones
    Straight Rectangular
    Image of Product. Front orientation. Polishing Stones. Polishing Stones for EDM Scale Removal, Straight Rectangular.
    Image of Product. Front orientation. ZoomedIn view. Polishing Stones. Polishing Stones for EDM Scale Removal, Straight Rectangular.
    Lg.
    Wd.
    Thk.
    Color
    Lubrication
    Each
    Aluminum Oxide—For Steel
     
    100 Grit (For Smooth Finish)
    6"1/4"1/16"BrownRequired47465A21300000
    6"1/4"1/8"BrownRequired47465A3250000
    6"1/2"1/16"BrownRequired47465A3260000
    6"1/2"1/8"BrownRequired47465A3270000
    6"1/2"1/4"BrownRequired47465A3280000
    6"1"1/4"BrownRequired47465A3290000
     
    120 Grit (For Smooth Finish)
    6"1/4"1/16"BrownRequired47465A8910000
    6"1/4"1/8"BrownRequired47465A8930000
    6"1/2"1/16"BrownRequired47465A8920000
    6"1/2"1/8"BrownRequired47465A8940000
    6"1/2"1/4"BrownRequired47465A8970000
    6"1"1/4"BrownRequired47465A8980000
     
    150 Grit (For Smooth Finish)
    6"1/4"1/16"BrownRequired47465A3310000
    6"1/4"1/8"BrownRequired47465A3330000
    6"1/2"1/16"BrownRequired47465A3320000
    6"1/2"1/8"BrownRequired47465A3340000
    6"1/2"1/4"BrownRequired47465A3350000
    6"1"1/4"BrownRequired47465A3360000
     
    180 Grit (For Smooth Finish)
    6"1/4"1/16"BrownRequired47465A3370000
    6"1/4"1/8"BrownRequired47465A3390000
    6"1/2"1/16"BrownRequired47465A3380000
    6"1/2"1/8"BrownRequired47465A3410000
    6"1/2"1/4"BrownRequired47465A3420000
    6"1"1/4"BrownRequired47465A3430000
     
    220 Grit (For Smooth Finish)
    6"1/4"1/16"BrownRequired47465A3440000
    6"1/4"1/8"BrownRequired47465A3460000
    6"1/2"1/16"BrownRequired47465A3450000
    6"1/2"1/8"BrownRequired47465A3470000
    6"1/2"1/4"BrownRequired47465A3480000
    6"1"1/4"BrownRequired47465A3490000
     
    320 Grit (For Extra-Smooth Finish)
    6"1/4"1/16"BrownRequired47465A3510000
    6"1/4"1/8"BrownRequired47465A3530000
    6"1/2"1/16"BrownRequired47465A3520000
    6"1/2"1/8"BrownRequired47465A3540000
    6"1/2"1/4"BrownRequired47465A3550000
    6"1"1/4"BrownRequired47465A3560000
     
    400 Grit (For Extra-Smooth Finish)
    6"1/4"1/16"BrownRequired47465A3570000
    6"1/4"1/8"BrownRequired47465A3590000
    6"1/2"1/16"BrownRequired47465A3580000
    6"1/2"1/8"BrownRequired47465A3610000
    6"1/2"1/4"BrownRequired47465A3620000
    6"1"1/4"BrownRequired47465A3630000
     
    600 Grit (For Polished Finish)
    6"1/4"1/16"BrownRequired47465A3640000
    6"1/4"1/8"BrownRequired47465A3660000
    6"1/2"1/16"BrownRequired47465A3650000
    6"1/2"1/8"BrownRequired47465A3670000
    6"1/2"1/4"BrownRequired47465A3680000
    6"1"1/4"BrownRequired47465A3690000
     
    800 Grit (For Polished Finish)
    6"1/4"1/16"BrownRequired47465A9040000
    6"1/4"1/8"BrownRequired47465A2510000
    6"1/2"1/16"BrownRequired47465A9070000
    6"1/2"1/8"BrownRequired47465A2540000
    6"1/2"1/4"BrownRequired47465A2610000
    6"1"1/4"BrownRequired47465A26400000
     
    1000 Grit (For Polished Finish)
    6"1/4"1/16"BrownRequired47465A9050000
    6"1/4"1/8"BrownRequired47465A2520000
    6"1/2"1/16"BrownRequired47465A9080000
    6"1/2"1/8"BrownRequired47465A2550000
    6"1/2"1/4"BrownRequired47465A2620000
    6"1"1/4"BrownRequired47465A26500000
     
    1200 Grit (For Polished Finish)
    6"1/4"1/16"BrownRequired47465A9060000
    6"1/4"1/8"BrownRequired47465A2530000
    6"1/2"1/16"BrownRequired47465A9090000
    6"1/2"1/8"BrownRequired47465A2560000
    6"1/2"1/4"BrownRequired47465A2630000
    6"1"1/4"BrownRequired47465A26600000
     
    Accessories for Stones

    Polishing Stone Assortments for EDM Scale Removal

    Image of Product. Front orientation. Polishing Stones. Polishing Stone Assortments for EDM Scale Removal.
    Remove hard scale from the EDM (electrical discharge machining) process with an assortment of stones that range from coarse to fine grits. These stones are harder than standard aluminum oxide polishing stones but are not so hard that they will scratch or gouge your workpiece. They abrade slowly, so you can control how much material you remove. Use these stones by hand or in power tools with a compatible holder (both sold separately). Apply a lubricant during use.
    No. of
    Pieces
    Includes
    Color
    Lubrication
    Each
    Aluminum Oxide—For Steel
    5One each 150, 220, 320, 400, 600-grit Stones—6" Lg. × 1/2" Wd. × 1/8" Thick.BrownRequired9196N11000000
    5One each 150, 220, 320, 400, 600-grit Stones—6" Lg. × 1/2" Wd. × 1/4" Thick.BrownRequired9196N1200000
    5One each 150, 220, 320, 400, 600-grit Stones—6" Lg. × 1" Wd. × 1/4" Thick.BrownRequired9196N1300000
    12One each 120, 180, 320, 400-grit Stones—6" Lg. × 1/4" Wd. × 1/8" Thick.
    One each 120, 180, 320, 400-grit Stones—6" Lg. × 1/2" Wd. × 1/8" Thick.
    One each 120, 180, 320, 400-grit Stones—6" Lg. × 1/2" Wd. × 1/4" Thick.
    BrownRequired9196N1400000
     
    Accessories for Stones
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