Annular Cutters for Magnetic Drills

Q: How do I choose the correct Annular Cutters annular cutter?

Match the cutter to the required hole diameter, cutting depth, arbor or shank size, pilot pin, magnetic drill capacity, and the material being cut.

Q: When should HSS, cobalt, or carbide-tipped annular cutters be used?

HSS is a general-purpose choice for many steels, cobalt offers improved heat resistance for harder materials, and carbide-tipped cutters are often selected for abrasive, hard, or difficult materials. Tool speed, lubrication, and manufacturer recommendations remain important.

Q: Why is cutting depth important when selecting an annular cutter?

The cutter must have enough usable depth to pass through the material without bottoming out. Also verify the pilot pin and arbor are correct for the selected depth and cutter series.

Shop annular cutters for magnetic drills, fabrication, maintenance, structural steel, and industrial hole-making applications. RTO carries HSS and carbide annular cutters in a wide range of diameters and cutting depths.

Choose the cutter by hole diameter, cutting depth, shank style, arbor compatibility, material type, and magnetic drill capacity. Review the individual product page to confirm pilot pin, arbor, lubricant, and machine requirements.

Unibor 2" X 2" M2 HSS Cutter, 3/4 Shank
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141738

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$235.32
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Unibor 7/16" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141739

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$30.00
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Unibor 9/16" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141741

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$45.08
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Unibor 5/8" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141742

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$50.61
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Unibor 11/16" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141743

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$51.72
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Unibor 3/4" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141744

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$55.79
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Unibor 13/16" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141745

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$59.04
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Unibor 7/8" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141746

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$63.54
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Unibor 15/16" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141747

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$69.23
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Unibor 1" X 1" Cobalt Annular Cutter
SHIPS: Normally Ships Next Business Day.
PRODUCT CODE: 141748

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$73.82
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Category Questions

How do I choose the correct Annular Cutters annular cutter?

When should HSS, cobalt, or carbide-tipped annular cutters be used?

Why is cutting depth important when selecting an annular cutter?

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