[K Kwokker 20 x 1/4" Hex Shank Hex Driver/ Allen Drill Precise Bits In Sae And Metric Sizes] 10 x SAE of 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16" and 10 x Metric of 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm. Drill Bit length 65mm.

[Very Well Made And Tough As Nails, 57 to 59HRC Hardness] The bits have experienced torsion and hardness test. The results of tests show that the maximum torsion force of bits are 180-200N and the hardness of bits are 57-59HRC. The high torsion and proper hardness avoid the bits break and wear.

[Magnetic Allen Head Drill Bit Has The 1/4 Inch Quick Release Hex Shank] The hex head screwdriver bit set is magnetic, which helps to keep nuts and bolts stuck to them. They pop right into impact drivers, and once they have been inserted into the impact driver, they will not fall out.

[Made From S2 Steel Material In a Shiny Rust-Resistant Finish With Labeled Size Marks & Magnetic Tips] Exquisite workmanship, each edge can be accurately locked screws, no damage to the screw and the screwdriver. Good material does not need to make the surface decoration through the exterior decoration, the quality of the batch is to look at the intrinsic material.

[Ideal For Working On Vehicles, Bicycles & Furniture. Assembling/ Repairing Ikea Furniture In An Easy Way] 1/4 inch quick release hex shank driver bits perfect fit for electric screwdrivers, screwdrivers, electric drills, air drills and so forth, used in engineering, machinery, maintenance of household appliances and other production lines. Using the correct screwdriver bar, pay the less effort, and can easily unscrew the screws!