D

Nominal diameter

D2

Shank diameter

D3

Neck diameter

D4

Point diameter

D5

Minor diameter

L1

Overall length

L2

Thread length 

L3

Neck length

L4

Square length

P

Pitch

a

Square

m

Land width

n

Flute width

s

Thread relief

a

Relief angle

g

Rake angle

a1

Thread angle

Leads of Hand Taps, Sets of 3 pcs.

 

Nr. 1
Rougher, 6-8 Threads Lead

 

Nr. 2
Intermediate, 4-5 Threads Lead

 

Nr. 3
Finisher, 2-3 Threads Lead


Leads of Hand Taps, Sets of 2 pcs.

 

Nr. 1
Rougher, 5-6 Threads Lead

 

Nr. 2
Finisher, 2-3 Threads Lead