Longcase Crank Key – Watch and Clock Parts
Longcase Crank Key

Longcase Crank Key

K3067
  • £24.99 GBP

Only 5 left!

Clock Keys UK Sizes Imperial to Metric
(Numbering system for Indian made keys does not equal UK imperial number system)

UK Imperial Sizes:
000 (3/0) = Metric 2.00mm
00 (2/0) = Metric 2.20mm
0 (1/0) = Metric 2.40mm
1 = Metric 2.60mm
2 = Metric 2.80mm
3 = Metric 3.00mm
4 = Metric 3.20mm
5 = Metric 3.40mm
6 = Metric 3.60mm
7 = Metric 3.80mm
8 = Metric 4.00mm
9 = Metric 4.20mm
10 = Metric 4.40mm
11 = Metric 4.60mm
12 = Metric 4.80mm
13 = Metric 5.00mm
14 = Metric 5.20mm
15 = Metric 5.40mm
16 = Metric 5.60mm
17 = Metric 5.80mm
18 = Metric 6.00mm
19 = Metric 6.20mm
20 = Metric 6.40mm
21 = Metric 6.60mm


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