3M Square/Cross Pad Mandrel The 3M Square/Cross Pad Mandrel secures a square pad, a cross pad, or a cross buff to a rotary tool with a 1/4 in (0.64 cm) collet assemblyThe external threaded shank must match the internal threaded inserts of the pad or buff to be usedThis useful accessory is available in three external thread sizes ? 3-48, 8-32 and 1/4-20 external. Product Information Brand 3M Part # 7100253723 Origin Country Taiwan Product Type Mandrels Extra Product InformationUsed for securing a square pad, a cross pad or cross buff to your 3M Die Grinder, the 3M Square/Cross Pad Mandrel allows you to make optimum use of your power tool by enabling it to accomplish more of the tasks you need to address.?This mandrel has a 1/4 in (0.64 cm) shank that is engineered to fit your rotary power tool securely and allow for quick assemblyAvailable in 3 external thread sizes for running at a maximum RPM of 24,100.Product Information1/4 in (0.64 cm) shank fits rotary power tool with a 1/4 in (0.64 cm) collet assemblyExternal threaded shank must match the internal threaded inserts of the square or cross padMandrel secures a square pad, cross pad, or cross buff to a rotary toolModels in 3 external thread sizes