13/32" Nitro Heavy Duty M-7N HSS Drill Bit, 135° Split Point

Tough Bits for Tough Jobs

When you are out in the shop or on a job site, time is money, and a broken drill bit is a frustration you don't need. The Nitro 13/32" Heavy Duty Drill Bit is built to handle the abuse of professional metalworking. Whether you are drilling out a broken bolt, fabricating a custom bracket, or punching holes in a truck frame, this bit delivers the performance you expect from a top-tier tool. Made in the USA, the Nitro 400N series is the go-to choice for welders and fabricators who demand reliability.

Why M-7N Steel Matters

Standard drill bits can dull quickly when facing hard materials like stainless steel. The Nitro bit is crafted from M-7N molybdenum high-speed steel. This specific alloy is richer in molybdenum than standard HSS, giving it exceptional heat resistance and wear properties. It cuts cleaner, stays sharp longer, and resists the high heat generated during aggressive drilling. This means fewer bit changes and more time spent getting the job done.

No More Walking

Starting a hole on a smooth metal surface can be tricky with cheap bits. The Nitro 13/32" bit features a precision 135-degree split point. This aggressive tip geometry allows the bit to self-center immediately, eliminating the need for a center punch and preventing the bit from wandering or "walking" off your mark. This feature is particularly valuable when working in awkward positions or on rounded surfaces like pipe and tubing.

Black & Gold Performance

The distinctive Black & Gold finish isn't just for looks. The black nitride treatment creates a super-hard protective shell that resists abrasion, while the gold oxide treatment adds lubricity. This combination helps the bit slide through the material with less friction, keeping the cutting edge cooler and preventing chips from welding to the flutes. For heavy-duty drilling in stainless steel and other hard metals, the Nitro 400N is the reliable workhorse you need in your toolbox.

Key Features

• Self-Centering: 135° split point starts on contact.
• Heat Resistant: M-7N steel withstands high temperatures.
• Lubricious Finish: Black & Gold coating reduces friction.
• USA Made: Quality manufacturing you can trust.