Clock Key Sizer Gauge - Swiss Sizes - A Handy Tool for your Clock Projects - New

This handy clock key sizer measures 4 5/8" x 1 1/2" and the base is made of 1/8" thick aluminum. The shafts are black steel and are 1/2" tall. New and made in India. The Swiss sizes range from 000 (1.75) up to size 15 (6.00). A very sturdy tool and a great gift for the clock guys and gals.

Key size......American..... Swiss
5/0................ 1.6...................1.25
4/0................ 1.8 ..................1.50
3/0................ 2.0.................. 1.75
2/0................ 2.2.................. 2.00
0.................... 2.4 ..................2.25
1.................... 2.6.................. 2.50
2.................... 2.8.................. 2.75
3.................... 3.0.................. 3.00
4.................... 3.2...................3.25
5.................... 3.4.................. 3.50
6.................... 3.6.................. 3.75
7.................... 3.8.................. 4.00
8.................... 4.0.................. 4.25
9.................... 4.2.................. 4.50
10.................. 4.4 ..................4.75
11................. 4.6.................. 5.00
12................. 4.8.................. 5.25
13................. 5.0.................. 5.50
14................. 5.2.................. 5.75
15................. 5.4.................. 6.00
16................. 5.6.................. 6.25
17................. 5.8.................. 6.50
18................. 6.0.................. 6.75
19................. 6.2.................. 7.00
20................. 6.4.................. 7.25
21................. 6.6.................. 7.50
22................. 6.8.................. 7.75
23................. 7.0.................. 8.00