What hole diameters can you drill with this Hikoki step drill bit?

This step drill bit allows you to drill hole sizes ranging from 4 mm to 12 mm.

What is the shank size of the Hikoki 780111?

The drill bit features a 6 mm round shank.

Which chuck is this step drill bit compatible with?

Thanks to the 6 mm shank, it fits into any standard 3-jaw drill chuck of 6 mm or larger.

What is an HSS step drill bit used for?

This HSS step drill bit is designed for drilling and deburring clean holes in sheet metal and plastics in a single operation.

HIKOKI 780111 step drill HSS 4-12 mm

Name: HIKOKI 780111 step drill HSS 4-12 mm
Brand: HIKOKI
SKU: 08061159
Price: 22.8 EUR
Availability: PreOrder

Supplier number: HIKOKI 780111 | EAN 8717574055818

Recommended Retail Price €40.98

22.80 tax incl.

€18.84 excl. VAT (incl. all environmental contributions)

On order: delivered from 17/10/2026

Delivery by DHL

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Precise drilling with the Hikoki step drill

Practical benefits

Multiple diameters in one: You drill clean holes from 4 to 12 mm without changing your drill bit.
Standard straight shank fit: The 6 mm shank fits securely into conventional chucks for stable drilling operations.
Durable high speed steel: Constructed from tough HSS material, you achieve smooth and burr-free cuts in sheet metals.

In a nutshell

The right choise for

With the Hikoki 780111 step drill bit, you drill and debur hole sizes from 4 to 12 mm without changing your bit. Made from durable hss steel, it cuts cleanly through thin sheet metal and plastics while preventing material distortion and tearing. The 6 mm straight shank fits securely into any standard drill chuck of 6 mm or larger, ensuring stable torque transfer. Perfect for enlarging holes, automotive bodywork, or installing cable entries in junction boxes.

Product information FAQ

€22.80

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Largest diameter: 12 mm
Shank size: 6 mm

Product description

Stair drill HSS D. 4 - 12 MM

All Features

Smallest diameter: 4 mm
Largest diameter: 12 mm
Shank size: 6 mm
Diameter (mm): 4-12
Implementation: Straight spiral
Connection: 6 mm

Brand HIKOKI
08061159
EAN 8717574055818
Supplier number HIKOKI 780111

Frequently asked questions about this product

Answered by specialists

What hole diameters can you drill with this Hikoki step drill bit?: This step drill bit allows you to drill hole sizes ranging from 4 mm to 12 mm.
What is the shank size of the Hikoki 780111?: The drill bit features a 6 mm round shank.
Which chuck is this step drill bit compatible with?: Thanks to the 6 mm shank, it fits into any standard 3-jaw drill chuck of 6 mm or larger.
What is an HSS step drill bit used for?: This HSS step drill bit is designed for drilling and deburring clean holes in sheet metal and plastics in a single operation.