SE is proud to present our 10-Piece Diamond Needle File Set with 150 Grit. Our set is great for cutting, filing, and shaping carbide, glass, gold, silver, stones, etc. The assortment of shapes allows you to use this set for a variety of projects and materials. The dimensions are 3 mm x 140 mm x 70 mm. Features of this 10-Piece Diamond Needle File Set include: (1) The following shapes: barette, crossing, equaling, knife, warding, square, three square, half round, tapered round, and round (2) Length of the diamond file: 5-1/2" (3) Diamond working length: 2-3/4" (4) Diamond grit: 150 (5) Comfortable dip handles provide excellent grip when exposed to fluid or moisture (6) Comes in a plastic pouch for easy organization and storage when not in use Please note:For long-lasting use please use a lubricant, such as water, when using all diamond-coated tools. Important:Avoid getting counterfeit items. Genuine SE products come with our SE logo on the packaging. SE is committed to providing the customer with the best source for value possible on the market. You will enjoy the quality, function and usefulness this SE 10-Piece Diamond Needle File Set with 150 Grit has to offer. SE is a registered trademark protected by US Trademark Law.