Features
Klein Tools designed an Adjustable Screwdriver and Bit Set for the professional tradesman and DIY enthusiasts. The bits are made of high impact rated S2 steel with an optimized torsion zone to enhance durability by absorbing impact forces. All 44 pieces fit in an impact-resistant case featuring steel hinges and a stay-shut latch. Case has modular stack-ability with other cases of similar design and is MODbox compatible.
Klein Tools 33803 ProFlex Impact Screwdriver Bit Set, 44 Pc.
Slotted: 5/32", 3/16", 1/4", 5/16"
Square: #1, #2, #3
Hex:
SAE: 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4"
Metric: 2 mm, 2.5 mm, 3 mm, 4 mm, 4.5 mm, 5 mm
Combo: C1, C2
TORX: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40

Klein Tools is the result of one of those “happy accidents” that turn out to be revolutionary. Klein Tools famously got their start in 1857 when a linesman came to founder Matthias Klein to repair his broken pliers. Klein replaced the broken half and when the old half of the tool broke too, Klein forged a replacement for that, thus making the first Klein Linesman pliers. Since these humble beginnings, Klein Tools has grown and become one of the largest American made toolmakers and they’re a brand used by tradesmen, linesman and electricians all across America.