Wera 868/4 IMP DC Impaktor Square Drive Bits SB, # 3 x 50 mm

This is a tool for anyone who screws regularly and needs a bit that can withstand impact loads. A bit that does not fit the screw or is not intended for impact work wears out faster. It is therefore worth checking before purchase exactly what you need.

What does # 3 x 50 mm mean?

The size consists of two parts. The number 3 refers to the size of the bit, which must fit the screw head. The 50 mm is the length of the bit. A longer bit fits more easily into deep or hard-to-reach screw holes, while a short bit feels more stable. So look at the screws you are working with and choose the combination of size and length that suits them.

Square drive and impact work

With a square drive, the bit connects to the square end of the tool. This is a different connection than the hex shank common in many drills. Therefore check that your machine or impact driver works with this connection. Impact bits are made to handle the impact mechanism of this type of tool, which distinguishes them from regular bits.

What work do you use this for?

An impact bit is useful for driving and removing screws that require a lot of force, such as in structural work, assembly and renovation. With frequent use, a bit will eventually wear out. It is handy to keep a spare bit at hand so that your work does not stop.

Frequently asked questions

Which tool is this bit intended for?

For tools with a square drive, such as an impact driver. Check the connection of your machine before ordering.

What is the difference between the size and the length?

The number 3 indicates the size of the bit, 50 mm is the length. Together they determine whether the bit fits your screw and whether the work is accessible.

Can I order this item separately?

Yes, it is offered per piece. If the item is not in stock, it can be ordered on backorder.