Page 817 - Benma | Blue book 5.0

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1 62620 Tap drill DC
UNC thread
HSS-E VAP UNC 2B B Z
3.5-5.5 3-4
P M K
≤ 850 ≤ 900

Straight grooves, progressive tap and V-surface treatment, HSS-E, tolerance field 2B.
Power class N
For long-chipping materials with a tensile strength of Rm > 350...1000 N/mm2.
Cut length: 4 x P.
N Hole type: For through holes.
Designs
UNC 4...1/4“: N320V-4, reinforced shaft.
UNC 5/16“...1“: N420V-4, falling-through shaft.
Order ID d P Standard L a d1 l l3 Ø Z
in mm mm mm mm mm mm
162620.0100 UNC 4 40 371 56 2.7 3.5 12 18 2.3 3
162620.0200 UNC 8 32 371 63 3.4 4.5 14 21 3.5 3
162620.0300 UNC 10 24 371 70 4.9 6 15 25 3.8 3
162620.0400 UNC 1/4“ 20 371 80 5.5 7 17 30 5.1 3
162620.0500 UNC 5/16“ 18 376 90 4.9 6 20 - 6.5 3
162620.0600 UNC 3/8“ 16 376 100 5.5 7 22 - 7.9 3
162620.0700 UNC 7/16“ 14 376 100 6.2 8 19 - 9.3 3
162620.0800 UNC 1/2“ 13 376 110 7 9 24 - 10.7 3
162620.0900 UNC 5/8“ 11 376 110 9 12 30 - 13.5 3
162620.1000 UNC 3/4“ 10 376 125 11 14 33 - 16.5 3
162620.1100 UNC 7/8“ 9 376 140 14.5 18 36 - 19.3 3
162620.1200 UNC 1“ 8 376 160 14.5 18 39 - 22.25 4
1 62640 Tap drill DC
UNC thread
HSS-E UNC 2B C Z
2-3 2-5

N
Cu, AI

With spiral grooves 40°, HSS-E, tolerance field 2B.
Power class N
For long-chipping materials with a tensile strength of Rm > 350...1000 N/mm2.
Cut length: 2.5 x P.
N Hole type: For pocket holes.
Designs
UNC 2...3/8“: N360-3, reinforced shaft.
UNC 7/16“...1 1/2“: N460-3, falling-through shaft.
Order ID d P Standard L a d1 l l3 Ø Z
in mm mm mm mm mm mm
162640.0100 UNC 2 56 371 45 2.1 2.8 8 - 1.75 2
162640.0200 UNC 3 48 371 50 2.1 2.8 9 - 2 2
162640.0300 UNC 4 40 371 56 2.7 3.5 5.5 18 2.25 3
162640.0400 UNC 5 40 371 56 2.7 3.5 5.5 18 2.55 3
162640.0500 UNC 6 32 371 56 3 4 6.5 20 2.75 3
162640.0600 UNC 8 32 371 63 3.4 4.5 7.5 21 3.4 3
162640.0700 UNC 10 24 371 70 4.9 6 9 25 3.8 3
162640.0800 UNC 12 24 371 80 4.9 6 11 30 4.4 3
162640.0900 UNC 1/4“ 20 371 80 5.5 7 11 30 5.1 3
162640.1000 UNC 5/16“ 18 371 90 6.2 8 12.5 35 6.5 3
162640.1100 UNC 3/8“ 16 371 100 8 10 14 39 8 3
162640.1200 UNC 7/16“ 14 376 100 6.2 8 14 - 9.3 3
162640.1300 UNC 1/2“ 13 376 110 7 9 14 - 10.8 3
162640.1400 UNC 9/16“ 12 376 110 9 11 14 - 12.2 3
162640.1500 UNC 5/8“ 11 376 110 9 12 18 - 13.6 3
162640.1600 UNC 3/4“ 10 376 125 11 14 21 - 16.6 3
162640.1700 UNC 7/8“ 9 376 140 14.5 18 24 - 19.5 4
162640.1800 UNC 1“ 8 376 160 14.5 18 27 - 22.3 4
162640.1900 UNC 1 1/8“ 7 376 180 18 22 30 - 25 4
162640.2000 UNC 1 1/4“ 7 376 180 18 22 30 - 28.2 4
162640.2300 UNC 1 1/2“ 6 376 200 24 32 40 - 34 5

808 Brütsch/Rüegger Tools Ltd. • Heinrich Stutz-Strasse 20 • P.O. Box • CH-8902 Urdorf • www.brw.ch