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HOLEX Pro Tap machine tap HSS-E, TiN, UNC: 1/4-20

Article no.: 178057 Catalog no.: 133375
Price per 1 Piece
Net price: CHF 15.85
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Product details

Technical Data

Through-coolant no
Cooling lubricant yes
Series Pro Tap
Manufacturer’s designation HOLEX Pro Tap Maschinen-Gewindebohrer HSS-E, TiN, UNC: 1/4-20
Interface position on the machine
Holder type plain shank
Shank diameter DS 7 mm
Thread type UNC
Cutter diameter D 6.35 mm
Nominal diameter of inch thread D 0.25 in
Thread D UNC1/4-20
Thread pitch 1.27 mm
Turns per inch 20
Thread tolerance class 2B
Length of tapping part Lc 19.05 mm
Taper lead angle 8 degrees
Number of teeth 3
Twist direction neutral, straight
Twist angle 0 degrees
Type of thread-cutting tool machine tap for dynamic machining
Taper lead form B
Number of clamping slots 3
Core hole diameter 5.1 mm
Square-drive width across flats □ 5.5 mm
Tool material HSS-E
Machining group P (steel)
Cutting media, manufacturer’s designation HSS-E
Coating TiN
Interface joint 1
Overall length L 80 mm
Cutting direction right-hand cutting
Standard DIN 371
Data carriers without data carrier
Machining method thread processing internal (EGI)
Colour ring green
Type of product taps

Identification & Classification

Article number 178057
Catalog number 133375
EAN / GTIN 4062406374242
Manufacturer number 133375 1/4-20
Article class 12I
Manufacturer/responsible person Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Alu plastics
N
24
Aluminium (short chipping)
N
25
Alu > 10% Si
N
10
Steel < 500 N/mm²
P
24
Steel < 750 N/mm²
P
20
Steel < 900 N/mm²
P
15
Steel < 1100 N/mm²
P
8
INOX < 900 N/mm²
M
8
CuZn
N
15
Uni
 
Oil
 
wet maximum
 

Description

Version:

HOLEX Pro Tap general-purpose tap. Sturdy design suitable for a wide spectrum of materials. Improved HSS-E tool material with low-friction TiN coating.

Application:

For UNC uniform coarse threads ASME − B1.1.

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