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M42 Cobalt

Unibor M42 Cobalt Annular Cutters

Shop Unibor M42 Cobalt Annular Cutters from RTO. Compare cutter diameter, cutting depth, material, shank size, and magnetic drill compatibility.

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Showing 105-112 of 131 products Two-column product view
Unibor 1-15/16" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 1-15/16" X 3" Cobalt Annular Cutter

Product code: 141843

Purchase price
$400.51
Available to rent: No

Sale only

Unibor 2" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2" X 3" Cobalt Annular Cutter

Product code: 141844

Purchase price
$420.64
Available to rent: No

Sale only

Unibor 2-1/16" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2-1/16" X 3" Cobalt Annular Cutter

Product code: 141845

Purchase price
$436.90
Available to rent: No

Sale only

Unibor 2-1/8" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2-1/8" X 3" Cobalt Annular Cutter

Product code: 141846

Purchase price
$455.94
Available to rent: No

Sale only

Unibor 2.3/16 x 3 Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2.3/16 x 3 Cobalt Annular Cutter

Product code: 141847

Purchase price
$464.46
Available to rent: No

Sale only

Unibor 2-1/4" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2-1/4" X 3" Cobalt Annular Cutter

Product code: 141848

Purchase price
$476.84
Available to rent: No

Sale only

Unibor 2-5/16" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2-5/16" X 3" Cobalt Annular Cutter

Product code: 141849

Purchase price
$487.68
Available to rent: No

Sale only

Unibor 2-3/8" X 3" Cobalt Annular Cutter

Ships: Normally Ships Next Business Day.

Unibor 2-3/8" X 3" Cobalt Annular Cutter

Product code: 141850

Purchase price
$496.97
Available to rent: No

Sale only

M42 Cobalt from RTO are organized for metal drilling, hole making, fabrication, maintenance, and industrial cutting work. This section includes a broad selection of products so contractors and purchasing teams can compare relevant items without sorting through unrelated equipment.

Typical items assigned to this category include Unibor 1 15/16" X 2" Cobalt Annular Cutter, Unibor 1" X 1" Cobalt Annular Cutter, Unibor 1" X 2" Cobalt Annular Cutter, and Unibor 1" X 3" Cobalt Annular Cutter. Use the individual product pages to confirm model-specific details such as size, capacity, flow, pressure, connection style, power source, material compatibility, included accessories, and rental or purchase availability.

These products are selected for fabricators, maintenance shops, contractors, and industrial crews who need dependable equipment for drilling, cutting, finishing, or preparing metal accurately. RTO can help match the category to the job conditions, including site access, operating environment, hose or power requirements, and related accessories.

Helpful answers

Category Questions

How do I choose the correct M42 Cobalt 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.

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.

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.