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Feature
Each adapter piece is constructed of chrome vanadium steel to deliver on longlasting strength and durabilityIncludes a bit extension with magnetized ends to securely hold 1/4-inch bits
Bits are compatible with common to heavy duty power tools, drivers and screwdriver handle tools
Spring loaded ball bearings on each square head securely locks into sockets to prevent slippage during use
Set includes (4) 1/4-inch, (2) 3/8-inch, and (2) 1/2-inch drive sizes and (1) magnetic bit extension piece with a 1/4-inch bit end