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Silver carbide annular cutter with pilot and 3/4 universal shank

Unibor

Unibor 27118 9/16 x 1.3/8 Carbide Cutter and Pilot pneumatic accessory

SKU CH-TD50-99VKV

Tungsten carbide tipped annular cutter with 3/4 universal shank for steel and truck frames

  • Tungsten carbide tips cut any steel type
  • 1-inch depth of cut handles thick material
  • 3/4 universal shank fits all tool brands
  • Model 27118 built for truck frame work
  • New condition delivers full factory performance

Purpose and user

The Unibor 27118 is a tungsten carbide tipped annular cutter with an integrated pilot designed for drilling structural steel. Its 3/4 inch universal shank allows it to fit magnetic drills and press systems from any manufacturer, making it a versatile choice for maintenance teams and metal fabrication shops.

Replaces and upgrade point

This cutter replaces worn or damaged high speed steel annular cutters when longer tool life and cleaner holes in tough alloys are required. The carbide tips maintain sharpness through repeated cuts in truck frames and heavy plate, so the switch pays off when downtime for bit changes slows a project.

Practical limits

The cutter achieves a maximum 1 inch depth of cut, so material thicker than that needs a different approach or multiple passes. The 3/4 inch shank diameter sets the minimum chuck capacity, and the carbide geometry is optimised for steel rather than non ferrous metals or wood.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $42.99
Pricier than about 63% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameUNIBOR

Questions about this item

Will the 3/4 universal shank fit my magnetic drill press?

The 3/4 universal shank fits all brands of magnetic drill presses that accept a 3/4 inch shank.

How do I install the cutter and pilot, and what step is often missed?

Insert the pilot into the cutter first, then secure the assembly in the drill chuck; users often forget to seat the pilot fully before tightening.

When should I replace the tungsten carbide tips on this annular cutter?

Replace the cutter when the tungsten carbide tips show visible chipping, dull edges, or when cutting 1.3 inch depth steel becomes slow and produces excessive heat.

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