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DIN 2184/1 - UNC
Maschinen-Gewindebohrer mit berlaufschaft
fr unified-Gewinde (grob) UNC – ASME – B 1.1
Baumae an DIN 376 angelehnt
Machine taps with reduced shank
for unified coarse thread UNC - ASME – B 1.1
dimensions generally as per DIN 376
UNC
d2
l2
l3
l1
a
Typ / Type HD Rapid Rapid VA VA
Toleranz 2 B 2 B 3 B 2 BX 2 BX
Tolerance B 4/5 B 4/5 B 4/5 B 4/5 B 4/5
Anschnitt / Gangzahl
Chamfer form / No. of threads
Schneidrichtung
Cutting direction
Schneidstoff/ Material HSS-Co HSS-Co HSS-Co HSS-Co HSS-Co
mm Gg/1” Kernloch l1 l2 l3 d2mm a 6874 6693 6693 6749 6749
Tpi Tap drill mm mm mm h9 h12 3B VP
UNC 7/16 - 14 9,40 100 14 24 8 6,2 - -
UNC 1/2 - 13 10,80 110 16 29 9 7,0
UNC 9/16 - 12 12,20 110 20 30 11 9,0 - -
UNC 5/8 - 11 13,50 110 20 32 12 9,0
UNC 3/4 - 10 16,50 125 25 34 14 11,0
UNC 7/8 - 9 19,50 140 25 34 18 14,5
UNC 1 - 8 22,25 160 30 38 18 14,5
UNC 1 1/8 - 7 25,00 180 - 45 22 18,0 - - -
UNC 1 1/4 - 7 28,00 180 - 50 22 18,0 - - -
UNC 1 3/8 - 6 30,75 200 - 56 28 22,0 - - -
UNC 1 1/2 - 6 34,00 200 - 60 32 24,0 - - -
UNC 1 3/4 - 5 39,50 220 - 65 36 29,0 - - -
UNC 2 - 4 1/2 45,00 250 - 70 40 32,0 - - -
Rapid: Herkmmliche Anwendung HD: fr zhe Werkstoffe
universal application for tough materials
VA: Fr rostfreien Stahl
for stainless steel
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