8790 HMB Zyklop socket wrench with 3/8" drive, 10 x 29 mm (8790HMB)

3840/4 Hex bits, stainless steel

Cold and vacuum hardening treatment

Wera's stainless steel tools undergo cold and vacuum hardening, providing the necessary hardness and strength for screwdriving applications. This allows for unrestricted industrial use.

Hex-Plus

Internal hex screws are problematic because the bearing surfaces through which the tool's force is transmitted to the screw are extremely narrow. This can damage the screw head. Hex-Plus tools have larger bearing surfaces that prevent this type of damage. And it's worth remembering: Hex-Plus tools fit any standard hex screw!

For internal hex screws

Stainless steel tips

The solution to the pollution problem: Screw stainless steel using stainless steel!

Hardened by vacuum freezing

Hex-Plus makes internal hex screws last longer

1/4" Hex Drive (Wera Connection Series 4)

Pollution

Stainless steel is inherently rust-resistant. However, if ordinary steel tools are used for screwdriving in stainless steel, abrasion can cause the tool to shed steel particles that adhere to the material and can lead to rust formation. Besides the aesthetic impact of this "contamination," as this phenomenon is known, it can also have negative consequences for the structure itself, potentially resulting in significant repair costs. Using stainless steel tools prevents this contamination caused by abrasion.

Screw stainless steel to stainless steel!

The solution to the contamination problem: Screw stainless steel with stainless steel! Wera stainless steel tools are truly made of 100% stainless steel, preventing unsightly contamination.

Stainless steel tips

Using stainless steel tips prevents rust from forming on stainless steel screws or surfaces. Contamination on stainless steel primarily results from abrasion when tightening screws with conventional steel tools. Abrasion produces strongly adherent steel particles that, under the effect of oxygen, turn into rust.

Cold and vacuum hardening treatment

Wera's stainless steel tools undergo cold and vacuum hardening, providing the necessary hardness and strength for screwdriving applications. This allows for unrestricted industrial use.

Hex-Plus

Internal hex screws are problematic because the bearing surfaces through which the tool's force is transmitted to the screw are extremely narrow. This can damage the screw head. Hex-Plus tools have larger bearing surfaces that prevent this type of damage. And it's worth remembering: Hex-Plus tools fit any standard hex screw!

For internal hex screws

Stainless steel tips

The solution to the pollution problem: Screw stainless steel using stainless steel!

Hardened by vacuum freezing

Hex-Plus makes internal hex screws last longer

1/4" Hex Drive (Wera Connection Series 4)

Item description

High-quality stainless steel bits for internal hex screws. Wera stainless steel tools are made of stainless steel, thus preventing the unsightly rust caused by external factors. The Hex-Plus profile provides larger contact surfaces within the screw head. This minimizes the scoring effect and virtually eliminates damage to the screw head. 1/4" hex shank, suitable for bit holders according to DIN ISO 1173-F 6.3.