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Drillco® Nitro Heavy-Duty Mechanic's Length Drill Bit Set, 29 Pieces, High Speed Steel

Marsoni M251S
Sale price$182.85
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Get it in 3 business days with 1 day shipping. Friday, May 29
Drillco® Nitro Heavy-Duty Mechanic's Length Drill Bit Set, 29 Pieces, High Speed SteelManufactured from a premium grade of M 7N molybdenum high speed steel The Nitro Heavy Duty 135 Split Point Drill with a Nitride surface treatment that gives a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel Body and clearance are gold and black surface treated for maximum lubricity Recommended for use in stainless steel and other hard metal drilling Specifications
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
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Michael Rhodes
Whiting, US
★★★★★ 5
Outboard thermostat
Works fine. A little pricey but better to buy the best than risk a cheap failure and destroy your engine like i did once.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
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carlos febus
Fort Morgan, US
★★★★★ 5
Good
Good
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Reviewed in the United States on April 27, 2026
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Verified Purchase
Will Rhoden
Port Orchard, US
★★★★★ 5
Works as it should
Works as it should
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Reviewed in the United States on March 24, 2026
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kelly napper
Pawtucket, US
★★★★★ 4
Four Stars
Just what I needed
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Reviewed in the United States on October 14, 2016
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Paul Schneeman
Battle Creek, US
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024

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