Screwdriver bit,bits for drywall screw  

1.Size: 6,7,8,9,10,11,12,13mm.

2. Length:45mm,50mm,65mm ,150mm.

3. Surface treatment: sand blast, phosphating red, Cr-coating or any other special finishes be required by customers .

4. Special heat-treated .

5. Can be supplied with magtenism or without magtenism.

6.The part be listed here is the part we have now, if customers need any other similar parts, also can send samples or drawings to show us the specs, we can follow to produce with the best products and the best costs.

1.Materail

CR-V(Chrome Vanadium Steel)

2.Size

Manufacture and supply various full series of screwdriver bits, nutsetters, nut drivers, Hex bit sockets, socket adapters, bit holders and quick change connectors for screwdriver bits

3.Special heat-treated

hardress:42-47

4.Produce as customized shapes

The part be listed here is the part we have now, if customers have any parts similar, also can send samples or drawings with specs, we can follow to produce and supply best products with best price and serive

• Specially constructed for power drills, screw guns, and cordless drills.
• Drop forged chrome vanadium steel.
• Heat treated and sand blasted finish.
• Strong magnetic insert in socket holds screws.  These are really nice and handy.  And for this quantity, you are sure to find the setter you need. 
• Setters are 2 9/16" (65mm) long. 
• SIZES: 8mm
• 1/4" HEX SHANK