Hi-Spec 17 Piece Metal Hand & Needle File Tool Kit Set. Large & Small Mini T12 Carbon Steel Flat, Half-Round, Round & Triangle Files. Complete in a Zipper Case with a Brush. Metal File Set & Extras: De-burr, shape, trim, and smooth metal, wood and plastics. Complete set of full-length and needle files, stiff-wire brush, work gloves, and sanding paper for DIY, woodworking, craftwork, and hobbies. All kept in a big zipper case. 4 Full Length Sizes: For general-purpose broad filing. Long 8in/200mm machinist’s files plus 4in/102mm chunky rubber-grip handles with hanging holes. The Flat, Half-Round, and Triangle files have a double-cut tooth pattern, whilst the Round file is a single-cut. Coarseness is from bastard to second-cut and have teeth cut along the edges. 12 Needle File Kit: For fine detail work. Smaller 4.25in/105mm files plus 2in/51mm slim handles. Find Square, Round, Flat, Joint, Slitting, and Equalling shapes with tapered ends, double cut patterns, and coarseness from smooth-cut to second-cut. NB. Some files also feature blank/un-milled safe edges and faces. Material Hardness: The heat-treated T12 and 82B Spring Steel High-Carbon steel alloys give high-wear resistance and hardness with low ductility. A light touch of machine oil is used to preserve their surface finish. The tough PP thermoplastic handles have a non-slip TPR rubberised coating. A Case with Accessories: Protect the files in the 13.5in/345mm long reinforced shell Oxford weave zipper case. Use the stiff-wire wooden brush to clean out teeth particles for smoother filing and no scratching. The cotton work gloves have a rubber texture for non-slip tool holding. Use the extra sanding papers for a finishing touch.