HSS taps
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Table of contents Symbol explanation and coatings 2 Technical Information Cutting Data 21+22 Tapped hole pilot diameter 23 Thread former pilot hole diameter 24 Thread tolerances and recommended manufacturing tolerances 25 WNTMASTERTOOL Premium quality tools for high performance. The premium quality tools from the WNT Mastertool Performance product line have been designed for specific applications and are distinguished by their outstanding performance. If you make high demands on the performance of your production and want to achieve the very best results, we recommend...

for corrosion and acid-resistant steels WNT MASTERTOOL STAN DARD / For cast iron materials WNT MASTERTOOL STAN DARD / for aluminium and non-ferrous metal WNT MASTERTOOL STAN DARD / Thread formers for cold-formable materials

HSS taps M - Metric ISO Standard Thread Through hole - Machine taps, right hand uni l, DIN 371 with reinforced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

WNT MASTERTOOL STAN DARD HSS taps M - Metric ISO Standard Thread Through hole - Machine taps, right hand va d, DIN 371 with reinforced shank DIN 376 with reduced shank Steel Stainless steel Cast iron Non ferrous metals Heat resistant alloys hardened materials

HSS taps M - Metric ISO Standard Thread Blind hole - Machine taps, right hand uni d, DIN 371 with reinforced shank HSS-PM Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

STAN DARD HSS taps M - Metric ISO Standard Thread DIN 371 with reinforced shank 120 Stainless steel Cast iron Non ferrous metals Heat resistant alloys hardened materials

STAN DARD HSS taps M - Metric ISO Standard Thread Through Hole / Blind Hole - Machine taps, right hand gg d, DIN 371 with reinforced shank Stainless steel Cast iron Non ferrous metals Heat resistant alloys hardened materials

■ SN = Thread formers with lubrication grooves HSS taps M - Metric ISO Standard Thread as DIN 2174 with reinforced shank Cast iron Non ferrous metals 10-50 Heat resistant alloys hardened materials 5-20

HSS taps MF - Metric ISO Fine Thread d, DIN 371 with reinforced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

STAN DARD HSS taps MF - Metric ISO Fine Thread Through hole - Machine taps, right hand va d, DIN 371 with reinforced shank Steel Stainless steel Cast iron Non ferrous metals Heat resistant alloys hardened materials

WNTMASJERm HSS taps MF - Metric ISO Fine Thread Blind hole - Machine taps, right hand uni d, DIN 371 with reinforced shank DIN 374 with reduced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

STAN DARD HSS taps MF - Metric ISO Fine Thread Blind hole - Machine taps, right hand va d, DIN 371 with reinforced shank DIN 374 with reduced shank Steel Stainless steel Cast iron Non ferrous metals Heat resistant alloys hardened materials

■ SN = Thread formers with lubrication grooves HSS taps MF - Metric ISO Fine Thread Cast iron Non ferrous metals 10-50 Heat resistant alloys hardened materials 5-20

unc HSS taps UNC - Unified Coarse Thread d, DIN 371 with reinforced shank DIN 376 with reduced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

HSS taps UNC - Unified Coarse Thread Blind hole - Machine taps, right hand uni l, DIN 371 with reinforced shank DIN 376 with reduced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

■ SN = Thread formers with lubrication grooves HSS taps UNC - Unified Coarse Thread as DIN 2174 with reinforced shank DIN 374 with reduced shank Cast iron Non ferrous metals 10-50 Heat resistant alloys hardened materials 5-20

unf HSS taps UNF - Unified Fine Thread d, DIN 371 with reinforced shank DIN 374 with reduced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

unf HSS taps UNF - Unified Fine Thread l, DIN 371 with reinforced shank HSS-PM DIN 374 with reduced shank Cast iron Non ferrous metals 15-35 Heat resistant alloys 5-10

■ SN = Thread formers with lubrication grooves HSS taps UNF - Unified Fine Thread as DIN 2174 with reinforced shank Cast iron Non ferrous metals 10-50 Heat resistant alloys hardened materials 5-20

HSS taps Cutting data Index Material Strength N/mm2 / HB / HRC Material number Material designation Material Material Material designation Material designation number number Free cutting steel Hardened steel, non alloyed Alloyed hardened steel Tempering steel, unalloyed Tempering steel, unalloyed Tempering steel, alloyed Tempering steel, alloyed Steel castings Nitriding steel Nitriding steel Roller bearing steel Spring steel High-speed steel Cold working tool steel Hot working tool steel 2.1 Cast steel and sulphured stainless steel < 850 N/mm2 1.4581 318 M 2.4 Stainless...

HSS taps Cutting data 6-4 The indicated values are possible cutting data which have to be increased or reduced according to the application conditions. 6.5 6.6

HSS taps Technical Information Tapped hole pilot diameter ISO metric coarse threads 6H to DIN 13 and DIN ISO 965-1 ( M1-M1,4 = 5H ) m

HSS taps Technical Information Thread former pilot hole diameterISO metric coarse threads 6H to DIN 13 and DIN ISO 965-1 (M1-M1,4 = 5H) Thread nominal 0 Thread nominal 0 Drill / Countersink 0 Core hole D x P min. max.

WNTMASTERTOOL HSS taps Technical Information Workpieces to be plated require oversize taps. The interference depends on the coating thickness and the flank angle. at 60° Flank angle Oversize ^ 4 x coating thickness 55° Flank angle Oversize ^ 4.331 x coating thickness 30° Flank angle Oversize ^ 7.727 x coating thickness For special applications, e.g. abrasive cast iron materials or plastics other dimensions have to be chosen which are determined on previous experience. In such cases an „X“ is added to the short designation of the tolerance, e.g. ISO 2X, however the tolerance zone...