Counterbore without pilot, Countersink ⌀ DC: 15mm

Article no.: 216225 Catalog no.: 156520
Price per 1 Piece
Net price: CHF 79.50
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Countersink ⌀ DC (mm) Price per 1 Piece (incl. VAT)

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Product details

Technical Data

Through-coolant no
Cooling lubricant yes
Interface position on the machine
Holder type morse taper MT
Holder version dimensionless nominal size without cooling
Holder size, no dimensions 2
Cutter diameter, min. Dc min. 15 mm
Cutter diameter, max. Dc max. 15 mm
Tolerance of cutter diameter manufacturer tolerance
For hole diameter d 4 mm
Pilot pin with exchangeable guiding pin
Nominal clamping diameter, workpiece side a 4 mm
Product designation (type) N
Tool material HSS
Interface joint 1
Overall length L 132 mm
Cutting direction right-hand cutting
Tool version solid steel
Standard DIN 375
Machining method subland drilling
Colour ring without
Type of product subland drill
Content single part

Identification & Classification

Article number 216225
Catalog number 156520
EAN / GTIN 4045197088017
Manufacturer number 156520 15
Manufacturer/responsible person Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Aluminium (short chipping)
N
33
Steel < 500 N/mm²
P
28
Steel < 750 N/mm²
P
27
Steel < 900 N/mm²
P
27
wet maximum
 

Description

Version:

Multi-edged, spiral fluted counterbore with recess in face for fitting various pilots. Pilot is clamped with a screw in the counterbore.

Application:

One counterbore can be used for several pilot holes of different diameters due to the interchangeable pilots.

Note:

The dimensions relate to screws DIN 912, 6912, 7984 and ISO 1207. However, with an appropriate pilot, a counterbore can be used for other screw sizes or counterbore / pilot diameter combinations.
For suitable reducing adapters for tools with MT shanks see No. 343000-343530.

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