Products in Sale

Machines with 4" Stones

These Stones will fit all older Black and Decker and Van Dorn Valve refacing machines that take 4" Valve refacing stones.
$38.95

80 Grit Ruby Red General Purpose Valve Grinder Stone.
4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter Fits all older Sioux & Thor Valve Grinders that use a 4" Stone.

Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N, NW, NWA, and NWB Valve Grinders.
$36.95

60 Grit General Purpose Valve Grinder Stone.
4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter Fits all older Sioux & Thor Valve Grinders that use a 4" Stone.

Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N, NW, NWA, and NWB Valve Grinders.
$36.95

100 Grit General Purpose Valve Grinder Stone.
4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter

Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N, NW, NWA, and NWB Valve Grinders.
$36.95

80 Grit Pink Valve Grinder Stone for Stelite and Stainless Steel Valves.
4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter

Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N, NW, NWA, and NWB Valve Grinders.
$36.95

90 Grit General Purpose Valve Grinder Stone. 

4" Diameter,  1" overall thickness with a 1/2" offset. 5/8" Hole Diameter 

Fits all older Sioux & Thor Valve Grinders that use a 4" Stone.

Fits Black & Decker and Van Dorn  A, B, C, LW, M, MW, N, NW, NWA, and NWB Valve Grinders.
$36.95

54 Grit Stem Grinder Stone. 

4" Diameter,  Straight Cup style, 1 1/8" overall thickness with 1/2" Hole Diameter 

Fits All Black & Decker Model Valve Grinders EXCEPT #6

OEM Part Number: 20939

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