felt disc for sale, brand-new and used.

It would have been used to test the flatness of an unknown surface. Lay the flat face down on top of the unknown surface, illuminate with monochromatic light (sodium or filtered mercury), and a series of interference fringes, much like a contour map, will appear

HiLDA 220V 170W Variable Rotary Tool Electric Mini Drill with Flexible Shaft and 91pcs Accessories Specification: Rated input power 170W Voltage 220 - 240V No load speed

Description : Polishing Wheel Polishing Buffer Pad Accessories Set for Dremel High quality, lowest price. Suitable for most hobby tools including the

Felt Disc's 5.0" in Diameter NEW For Sale is the Lot of (10) 5.0" Felt Disc's pictured above. Our factory produces thousands of these per month. They are punched using a press.

Felt Disc's 4.5" in Diameter NEW For Sale is the Lot of (10) 4.5" Felt Disc's pictured above. Our factory produces thousands of these per month. They are punched using a press.

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One yellow brush is brand new (NOS) in the original shipping box. The other yellow brush is obviously used. The Showerfeed Diamond Disc Driver with Splash Guard appears brand new.