18 Piece System 4 Hex Inch and Metric Precision Interchangeable Bit Set.
Precision handle, bit extension & 16 interchangeable bits in compact, fold-out box.
Weight .31lbs

BITS INCLUDED: Hex Metric: .7, .9, 1.3, 1.5, 2.0, 2.5, 3.0 & 4.0mm Hex Inch:  .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64 & 5/32 105m Bit Extension

Piece System 4 Torx Precision Interchangeable Bit Set.
Precision handle, bit extension and 9 interchangeable bits.  
Weigt .26lbs.

BITS INCLUDED: Torx: T3, T4, T5, T6, T7, T8, T9, T10 & T15

27 Piece System 4 Slotted, Phillips, Hex Inch and Torx Precision Interchangeable Bit Set.
Precision handle, bit extension & 25 interchangeable bits.  Weight .34lbs.

BITS INCLUDED: Slotted: 1.5, 2.0, 3.0 & 4.0mm Phillips: 000, 00, 0 & 1 Torx: T3, T4, T5, T6, T7, T8, T9, T10 & T15 Hex Inch: .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64 & 5/32 105mm Bit Extension

27 Piece System 4 Slotted, Phillips, Hex Metric and Torx Precision Interchangeable Bit Set.
Precision handle, bit extension and 25 interchangeable bits.

BITS INCLUDED: Slotted:  1.5, 2.0, 3.0 & 4.0mm Phillips:  000, 00, 0 & 1 Torx: T3, T4, T5, T6, T7, T8, T9, T10 & T15 Hex Metric: .7, .9, 1.3, 1.5, 2.0, 2.5, 3.0 & 4.0mm 105mm Bit Extension

40 Piece System 4 Slotted, Phillips, Hex Metric, Hex Inch and Torx Precision
Interchangeable Bit Set.  Precision handle, bit extension & 25 interchangeable bits
in steel box.  Weight 1.04lbs.

BITS INCUDE: Slotted:  0.8, 1.2, 1.5, 1.8, 2.0, 2.58, 3.0, 3.5 & 4.0mm Phillips:  000, 00, 0 & 1 Torx: T3, T4, T5, T6, T7, T8, T9, T10 & T15 Hex Metric: .7, .9, 1.3, 1.5, 2.0, 2.5, 3.0 & 4.0mm Hex Inch: .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64 & 5/32 105mm Bit Extension

25 Piece System 4 Standard and Tamper Resistant Hex and Torx Precision Interchangeable Bit Set.
Precision handle, bit extension and 23 interchangeable bits.  Weight .34lbs.

BITS INCLUDE: Standard Metric Hex: 1.5mm Tamper Resistant Metric Hex:  2.0, 2.5, 3.0 & 4.0mm Standard Inch Hex: .050, 1/16" Taper Resistant Inch Hex: 5/64, 3/31, 7/64, 1/8, 9/64 & 5/32" Standard Torx:  T3, T4, T5 & T6 Tamper Resistant Torx: T7s, T8s, T10s, T15s & T20s 105mm Bit Extension