Catalogo ABC 54

F 4 Chart for choosing the right tap 7270 7245 7265 7265/80 7225 7225/81 4060 4058 7410 7255 7275 6008 2 2 2 2 2 2 2-4 2-4 2 continuation B 4-5 thr. B 4-5 thr. B 4-5 thr. B 4-5 thr. B 4-5 thr. B 4-5 thr. B 4-5 thr. Correct Correct Correct Correct Correct C 2-3 thr. C 2-3 thr. Correct lead-in lead-in lead-in lead-in lead-in lead-in Lead-in 1 Through hole, thread depth up to 2 x d 1 Type of hole  D MKS O - E O - E O - E O - E O - E O - E D - E O - E Material group Material sub-group Cooling Lubricant Special notes Cooling liquid legend O = cutting oil E= emulsion D = dry S = special cutting oil MKS = minimal lubrication 2 M MF BSW G BSPT NPT UNC UNF Mod. BOSS Through hole, thread depth up to 3 x d 1 Blind hole, thread depth up to 2 x d 1 Blind hole, thread depth up to 3 x d 1 Blind hole, thread depth up to 3 x d 1 with deep pilot hole for chip removal Type of thread 3 4 5 FUTURA coat. Nitrided TiN coating Vaporised Riv. TiCN Nitrided- forming tap Nitrided 10-15  20-50  30-50  10-20 10-15  20-50  15-20  30-50  10-20   5-10  10-20   3-6  6-10 10-20 6-10 10-20 10-20 6-10 10-20 6-10 10-20 15-30  20-50 20-50 10-20 15-30  20-50 20-50 10-20 20-50 20-40 30-50 20-50 20-50 20-40 30-50 20-50 20-30 30-50 20-30 20-30 Application: 00-00 Recommended – 00-00 Suggested 1. Steel 1.1 Non-alloy steel ≤ 800 N/mm 2 1.2 Non-alloy steel ≤ 1000 N/mm 2 1.3.1 Non-alloy and alloy steel ≤ 1200 mm 2 1.3.2 Non-alloy and alloy steel > 1200 N/mm 2 1.3.3 Hardened steel – 42÷46 HRc 1.4 Stainless steel (V2A) 1.5 StainlesssteelwithhighCr-Nicontent(V4A) 1.6 High speed steel 2. Cast iron 2.1 Grey cast iron 2.2 Spheroidal cast iron, ductile cast iron 3. Non-ferrous 3.1 Aluminium, copper and copper alloys materials 3.2.1 Aluminium alloys, copper alloys 3.2.2 Special aluminium alloys 3.3 Short chip copper alloys 4. Special 4.1 Nickel alloys alloys 4.2 Titanium alloys 4.3 Cu-FE-Al alloys 5. Plastic 5.1 Thermoplastic 5.2 Plastic, reinforced plastic with fiber F 7845/3 F 7845/4 F 7848 F 7845/22 F 7865/3 F 7865/4 F 7845/44 F 7845/5 F 7845/7 F 7847 F 7868 F 7848/3

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