Drill America 1-1/64in Reduced Shank HSS Contractor Drill Bit

In this review the Drill America 1-1/64in Reduced Shank High Speed Steel Contractor Drill Bit is evaluated for contractors and metalworkers who need a reliable single-size twist bit that performs in ferrous materials. The bottom line: this bit is for users who value a secure chuck fit and accurate starts - its 135 degree split point cuts down walking and the 3-flat 1/2in reduced shank locks in chucks for heavy jobsite use. The review focuses on real-world use in aluminum, iron and steel and weighs durability against occasional reports of chipping.

Key Features

• M1 High Speed Steel: The HSS construction is made for heat resistance and consistent cutting through metal, extending life under load.
• 135 degree split point: The self-centering tip reduces walking on the workpiece so holes start accurately without pilot marks.
• 3-flat 1/2in reduced shank: The reduced shank with flats provides a non-slip contact in standard chucks for secure torque transfer.
• Common lengths: The 3in flute and 6in overall length match common jobsite dimensions so tool changes need minimal readjustment.
• Contractor grade build: Designed for professional use, the bit balances cutting speed and toughness for repetitive metal drilling.

Who It's For

This bit is best for contractors, fabricators and maintenance technicians who regularly drill through metal and need a dependable single-size option that fits standard chucks. It is a practical choice when working with steel, iron and aluminum where a robust tip and strong shank are important.

Hobbyists or users who require long-life carbide-tipped performance on extremely abrasive alloys should look elsewhere; similarly, those needing metric sizes, stainless-specific coatings, or unusually long reach bits may prefer a different product.

Pros & Cons

Pros

• Secure 3-flat reduced shank prevents slippage in the chuck under torque.
• 135 degree split point delivers reliable, self-centering starts and less bit walking.
• Contractor-grade M1 HSS gives a good balance of cutting speed and toughness for steel and aluminum.
• Common flute and overall length minimize setup changes between drills.

Cons

• Some users report the edge dulls or chips under heavy use, so high-volume production work may require frequent resharpening or replacement.
• Single-size availability means buying multiple bits for different hole sizes rather than a set.

Specifications

Material	M1 High Speed Steel
Tip	135 degree split point
Shank	3-flat 1/2in reduced shank
Flute length	3in
Overall length	6in
Intended materials	Aluminum, iron, steel and other ferrous metals

Our Verdict

The Drill America 1-1/64in reduced shank HSS bit is a practical, cost-effective choice for contractors who need secure chuck grip and accurate starts when drilling metal. It represents good value for site work, delivering solid cutting speed and ease of use, though those doing continuous high-volume production may need to monitor edge wear and resharpen or replace more often.

Frequently Asked Questions

Will this bit fit a standard 1/2in drill chuck?
Yes, the 3-flat 1/2in reduced shank is designed to hold securely in standard 1/2in chucks.

Is this bit suitable for aluminum and steel?
Yes, the M1 HSS construction and split point tip are intended for aluminum, iron and steel drilling.

Does the split point eliminate the need for a pilot hole?
The 135 degree split point aids self-centering and usually removes the need for a pilot hole on flat metal surfaces, though hard or curved surfaces may still benefit from a pilot mark.