How many sizes of metric screwdrivers should there be?

WillAdams

Member
Joined
Feb 13, 2018
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207
Trying to put together a full set of slotted screwdriver bits and was surprised that PB Swiss offers only six sizes:

PB C6.100/1 3.5 mm x 0.5 mm
PB C6.100/2 4 mm x 0.6 mm
PB C6.100/3  5.5 mm x 0.8 mm
PB C6.100/4  6.25 mm x 1 mm
PB C6.100/5 8 mm x 1.2 mm
PB C6.100/6  10 mm x 1.6 mm

Only two of which coincide w/ Felo's offerings:

07157 30066 3.0 mm x 0.5 mm
0715724037  4.0 mm x 0.5 mm
30089 5.0 mm x 0.8 mm
30097 5.5 mm x 0.8 mm
30105 5.5 mm x 1.0 mm
30112 6.0 mm x 1.0 mm
30918 6.5 mm x 1.2 mm
31410 8.0 mm x 1.2 mm

Waiting on my reprint copy of _Machinery's Handbook_ to arrive tomorrow, but trying to put together a comprehensive list (and set) of screwdriver bits --- other sources / resources?
 
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