The Swiss-Tech Transformer is basically a set of six screwdrivers that fold into a hollow plastic frame. The frame also contains a flashlight with dual LED's.
Handle/Frame
A polished stainless steel frame contains the folding screwdrivers.
The frame folds into a plastic housing.
Drivers
Six different screwdrivers are contained in the Transformer. They are non-locking, but stay open or closed as needed by adequate backspring pressure.
#0 small flathead
#1 medium flathead
#2 large flathead
#0 small phillips
#1 medium phillips
#2 large phillips
Other Features
A dual-LED flashlight is contained in the plastic housing. A sliding on-off slide switch is located along one side.
1/4-inch and 5mm ruler marks are molded in.
A keyring attachment point is located on one end.
Dimensions
Length closed = 2-3/4" (72mm)
Length fully extended = 6-1/4" (160mm)
Width = 1-3/4" (44mm)
Thickness = 5/8" (15mm)
Weight = 3.9 oz (110g)
Background
Introduced in 2008. Made in China.
Related Tools
The Transformer Xi 12-in-1 model differs from the 11-in-1 only in having another set of "work lights" on the opposite end of the tool.
The Transformer is somewhat large and heavy for a keychain tool. In general it does not have a good feature-to-weight ratio. Other multitools that are far lighter can do just as much.