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Cobalt, HSS, & Carbide Reamers



Cobalt, High-Speed Steel (HSS), and carbide reamers offered by RedLine Tools are proudly made in the USA. Our wide selection of reamers is designed to provide you with the perfect tool for a variety of applications. RedLine reamers, including long tapered reamers, are capable of working in a wide range of materials for steel, stainless steel, high temp alloy or non-ferrous materials.

Our comprehensive product offering includes straight reamers, right-hand spiral flute, expansion style, and tapered reamers — as well as capscrew counterbores — all designed to give you the precision you need.

To accurately adjust the size of existing holes with ease, view the cobalt, HSS and carbide reamers available below, or conduct a filtered search using the parameters listed on the left side of the page. All our reamers are engineered for quality and to meet the demands of the manufacturing industry.

**View our Reamers catalog section.**


Our Selection of Cobalt, HSS and Carbide Reamers


*Photos may not be the exact representation of our reamers.


Reamers 
Viewing Page 1 of 9 (84 results)
.2490 O/U Cobalt Straight Flute Reamer

RR60524

.2490 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2410 Shank Dia
RedLine Tools Made in the USA
IN STOCK
21 Available from Factory
UOM : EA
$21.98



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.3115 O/U Cobalt Straight Flute Reamer

RR60542

.3115 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2790 Shank Dia
RedLine Tools Made in the USA
IN STOCK
12 Available from Factory
UOM : EA
$31.14



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.2510 O/U Cobalt Straight Flute Reamer

RR60526

.2510 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2410 Shank Dia
RedLine Tools Made in the USA
ON ORDER
USUALLY SHIPS 2-3 DAYS
45 Available from Factory
UOM : EA
$22.10



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1/4 (0.2500) Cobalt Straight Flute Reamer

RR60525

.2500 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2410 Shank Dia
RedLine Tools Made in the USA
ON ORDER
USUALLY SHIPS 2-3 DAYS
33 Available from Factory
UOM : EA
$20.87



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8mm (0.3150) Cobalt Straight Flute Reamer

RR60545

.3150 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2790 Shank Dia
RedLine Tools Made in the USA
USUALLY SHIPS
2-3 DAYS
15 Available from Factory
UOM : EA
$32.97



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1/4 (0.2500) Cobalt Right Hand Spiral Reamer

RR61019

.2500 Cobalt Reamer, Straight Shank - Right Hand Spiral, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2405 Shank Dia
RedLine Tools Made in the USA
USUALLY SHIPS
2-3 DAYS
16 Available from Factory
UOM : EA
$23.87



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.3135 Cobalt Straight Flute Reamer

RR60544

.3135 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2790 Shank Dia
RedLine Tools Made in the USA
USUALLY SHIPS
2-3 DAYS
12 Available from Factory
UOM : EA
$31.14



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.2480 Cobalt Right Hand Spiral Reamer

RR60374

.2480 Cobalt Reamer, Straight Shank - Right Hand Spiral, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2405 Shank Dia
RedLine Tools Made in the USA
USUALLY SHIPS
2-3 DAYS
52 Available from Factory
UOM : EA
$24.05



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F (0.2570) Cobalt Straight Flute Reamer

RR60528

.2570 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2490 Shank Dia
RedLine Tools Made in the USA
USUALLY SHIPS
2-3 DAYS
13 Available from Factory
UOM : EA
$24.55



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.2495 Cobalt Straight Flute Reamer

RR60613

.2495 Cobalt Reamer, Straight Shank - Straight Flute, 1.5000 Flute, 6.0000 OAL, 6 Flt, .2405 Shank Dia
RedLine Tools Made in the USA
ON ORDER
USUALLY SHIPS 2-3 DAYS
25 Available from Factory
UOM : EA
$20.93



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