We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Unibor

Unibor Multicut Impact Shank Step Drill 1/4in-3/4in

SKU CH-5015-FF43T

Cuts hole sizes from 1/4 inch to 3/4 inch using an impact-rated shank for fast drilling

  • Drills holes from 1/4in to 3/4in in a single pass
  • Impact-rated shank withstands high-torque drivers
  • Multicut geometry reduces walking on start
  • Unibor brand built for professional tool users
  • Free manufacturer shipping on orders over $75

Multicut Impact Step Drill 1/4in–3/4in

The Unibor 06X2EIMP is a step drill bit with an impact-rated shank designed for use with impact drivers. It cuts holes from 1/4 inch up to 3/4 inch in a single pass, making it suited for electricians, plumbers and metal fabricators who need quick, repeatable hole sizes in sheet metal and thin plate.

Impact Driver Compatibility And Step Limits

The 1/4-inch hex shank fits standard impact drivers, but the tool is not intended for heavy-duty drilling in thick structural steel or hardened alloys. Each step increments the diameter, so the largest hole you can produce is fixed at 3/4 inch; deeper or larger bores require a different bit or a dedicated hole saw.

Check Chuck Grip And Material Thickness

Verify that your impact driver accepts a 1/4-inch hex shank and delivers enough torque for the material you plan to drill. The bit works best on sheet metal, plastic and thin-walled tubing; if your workpiece exceeds the practical thickness for a step drill, consider a twist bit or annular cutter instead.

Highlights

  • Drills holes from 1/4in to 3/4in in a single pass
  • Impact-rated shank withstands high-torque drivers
  • Multicut geometry reduces walking on start
  • Unibor brand built for professional tool users
  • Free manufacturer shipping on orders over $75

Specifications

BrandUNIBOR

Questions about this item

Should I choose the 1/4in-3/4in Multicut Impact Shank Step Drill or another size range?

The 1/4in-3/4in range covers common hole sizes in one bit, reducing tool changes on site.

How does the Multicut Impact Shank perform when drilling steel with an impact driver?

The impact-rated shank transfers high torque without slipping, letting the stepped flutes cut clean holes in metal.

What does the 1/4in hex shank limit in terms of chuck compatibility?

The 1/4in hex shank fits standard impact-driver chucks and quick-change adapters, but not 1/2in drill chucks without an adapter.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.