Page 628 - Master Catalog 2017, Inch
P. 628
Threading Application Guide
TopThread Threading
™
TopThread Square Shank Toolholder Sizes: Cresting (Full Profi le):
UN TPI of 32–7
• Inch — .375–1.5"
External Threading • Metric — 10–32mm ISO 1,5–3,0mm pitch
60° Partial Profile — Flat Top
(NTF and NTK):
UN 44–4.5 TPI
ISO 0,6–5,5mm pitch
Boring Bar Diameters: Cresting (Full Profi le):
TopThread • Inch — .312–2.5" UN 16–8 TPI
Internal Threading • Metric — 10–50mm ISO 1,5–3,0mm pitch
• Minimum bore — .440" (11,5mm)
• Steel 60° Partial Profile — Flat Top
(NT-1L, NTF, and NTK):
UN 24–4.5 TPI
ISO 1,0–5,5mm pitch
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