Ultramini toolholder Premiumline

687.PT20-D

EAN-code: 687.PT20-D-duemmel

Grooving, boring and profiling starting at Ø 0,2 mm
toolholder, Premiumline with improved cooling
Ø 16 - 20 mm
for insert with D min. 6,8 - 7,8 mm

VAT 0% 124,25 €

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Description

The Dümmel Ultramini tool-line is a must for turning smallest bores.
The inside bore machining of small diameters has always been difficult and it is not easy to obtain the ideal tool.
The Ultramini tool-line covers more than 1.000 different standard inserts which could be clamped in only two toolholders.
Of course the complete Ultramini program is available on stock.

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Technical details

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Models
687 PT20 D

Description Symbol Value

Diameter

Ø d2

7 mm

Diameter

Ø d3

8 mm

Connection diameter

Ø d g6

20 mm

Length

L2

90 mm

Length

L3

10 mm

Length

L4

70 mm

Clamping screw

A.GST011

Wrench

T10F

Tightening torque

1,2 Nm