Dormer G12520.0X10.2 5973184 180° 3-flute counterbore with 20mm cutting diameter and 10.2mm guide pilot diameter, 10mm pilot length, 12.5mm connection diameter with M12 thread, h9 tolerance. High Speed Steel (HSS) construction to DIN 373 standard. Suitable for cast iron, non-ferrous metals, and steel applications.

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Counterboring (for fasteners) 180°

Basic Standard

DIN 373

Coating

Bright

Connection diameter - inch (DCON MS)

0.4921

Connection diameter - millimeter (DCON MS)

12.5

Connection diameter tolerance machine side (TCDCONMS)

h9

Connection size code machine side (CZC MS)

M 12 t

Cutting diameter - inch (DC)

0.7874

Cutting diameter - millimeter (DC)

20

Cutting diameter tolerance class (TCDC)

z9

EDP number

107720

Flute count (NOF)

3

Guide Pilot Diameter - millimeter (GPD)

10.2

Guide Pilot Length - millimeter (GPL)

10

Hand (Cutting direction)

Right

Head length - millimeter (LH)

22

Material

HSS

Material application

K - Cast iron, N - Non-ferrous metals, P - Steel and cast steel

MID number

5973184

Ordering code ANSI

G12520.0X10.2

Overall length - inch (OAL)

3.937

Overall length - millimeter (OAL)

100

Shank

Cylindrical shank

Step included angle (STA)

180