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Unibor step drill with three stepped diameters and Weldon shank

Unibor

Unibor 19X1E3 step drill 1 in 1.1/8 in Weldon shank

SKU CH-6RVJ-AJPRV

Step drill with three diameters covering 1 in to 1.1/8 in, Weldon shank

  • Drills 19 mm and 1.1 in holes in one tool
  • Weldon shank locks securely in magnetic drill presses
  • Three diameter steps cover common pipe and conduit sizes
  • Hardened steel construction resists wear on tough materials
  • Single-bit design reduces changeover time on site

Step drill for 1 in to 1.1/8 in holes

The Unibor 19X1E3 step drill creates three distinct diameters in a single pass. It is designed for trade professionals and maintenance teams who need clean, repeatable holes in sheet metal or plate without changing bits.

Weldon shank fits magnetic drill presses

The 19 mm Weldon shank locks directly into compatible magnetic-base drill stands, eliminating the need for a separate chuck or adapter. This secure connection reduces run-out and allows the tool to handle the feed forces typical of structural steelwork.

Confirm your machine accepts 19 mm Weldon

Verify that your magnetic drill or press is equipped for a 19 mm Weldon shank before ordering. The step profile is fixed at three diameters, so the tool cannot produce sizes outside the stated range.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $99.99
Pricier than about 56% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameUNIBOR

Questions about this item

When will the 19X1E3 step drill need replacing?

Replace the bit when the three diameter steps no longer cut cleanly or the Weldon shank shows wear that prevents secure chucking.

What limits the 19X1E3 during continuous drilling?

Heat buildup in the high-speed steel cutting edges is the first limit during sustained use.

How hot does the 19X1E3 get when run all day?

The cutting zone becomes too hot to touch; use cutting fluid and pause periodically to manage temperature.

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