Общий каталог Widia 2017 - страница 1793

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Tap Chamfers

  • Tap Chamfers • ANSI Taps
Taper Chamfer Plug Chamfer Modified Bottoming Chamfer Full Bottoming Chamfer
7–10 Pitches3–5 Pitches2–2.5 Pitches1–2 Pitches

Tap Chamfers

Taper (7–10 pitches)Plug (3–5 pitches)Semi-Bottom (2–2.5 pitches)Bottoming (1–2 pitches)
The taper chamfer has theThe most common chamferThis short chamfer enablesFor threading close to the
longest standard chamferfor use by hand or machinethreading close to the bottombottom of blind holes, the
ensuring easier starting. Itin through or blind holes. Thisof blind holes. Due to the slightlybottoming chamfer is the
requires less tapping torquechamfer is more efficientlonger chamfer and moreleast efficient chamfer
because of more working teeth.than a bottoming or modifiedworking teeth, this chamfer isavailable.

bottoming chamfer. more efficient than a bottoming chamfer.

  • Tap Chamfers • DIN Taps
Taper Chamfer Plug ChamferModified Bottoming Chamfer Full Bottoming Chamfer
7–10 Pitches3–5 Pitches2–2.5 Pitches1–2 Pitches

Hand Tap Chamfers

Form A (6–8 pitches)Form B/D (3.5–5 pitches)Form C (2–2.5 pitches)Form E (1.5–2 pitches)
The Form A chamfer has theThe most common chamfersThis short chamfer enablesFor threading close to the
longest standard chamferfor use by hand or machine inthreading close to the bottombottom of blind holes, the
ensuring easier starting. Itthrough or blind holes. Form Bof blind holes. Due to the slightlyForm E chamfer is the least
requires less tapping torqueapplies to spiral-point taps andlonger chamfer and more workingefficient chamfer available.
because of more working teeth.Form D applies to straight-fluteteeth, this chamfer is more

and spiral-flute taps. This chamfer efficient than a Form E chamfer. is more efficient than Form E or Form C chamfer.