Best Amana Tool Boring Drill Bits in 2026

Extreme Durability: Cobalt high speed steel drill bits along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.

Different Sizes of Holes Can Be Drilled: Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. You are capable to drill holes in different sizes which can meet your normal needs.

Smooth Drilling: Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).

HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.

Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and many other types of sheet metal with ease countersunk. Suitable for Home DIY, and General Building/ Engineering Use.

Design - The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation.

【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.

【Most Commonly-Used 20 Sizes】A complete combo set of 31 jobber length industrial drill bits for metal drilling (1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64",7/32",15/64",1/4", 17/64", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2") . They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.

【Precise & Efficient Drilling Performance】✔ Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. ✔ 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.

【6 Sizes fit all needs】 6 most commonly-used sizes ( 3/8",1/2", 5/8", 3/4", 7/8", 1" ) to satisfy all your needs. Come with a portable plastic bag for easy storage and organization.

【Carbon Steel with Titanium Coating】 Heavy-duty shanks for satisfactory durability, high wear resistance and longevity, Use them to cut faster and cleaner holes on wood.

【Sharper&Faster&Efficient】 Beveled Cutting Edge+Optimized largest area groove = sharper and faster drilling speed & smoother chip removal.

HIGH QUALITY - These are made of HSS material with titanium coated, drill bits body edge sharp, faster with less effort. Fully ground spiral groove design quickly decreases friction and heat for a faster and cooler drilling performance.

INCLUDING 6 SIZES - 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm, which can meet your daily need. Fits most of power drill and come with a portable plastic bag for easy storage and organization.

135 DEGREE SPLIT POINT - The 135 ° split point with straight shank prevents walking, the sharp edge makes drilling faster and more effective.Good addition to your drill bit collection.

Use for Steel; non-ferrous Steel; Aluminum; Wood; Plastic.

Premium M2 High Speed Steel; Full Machine Grounded; Titanium coating;

135 degree Split point, Diamond point;

What it does: Heavy-duty high-speed steel bridge reamers,expand or align existing holes through mild steel, alloys, aluminum, wood, plastic, fiberglass, or any material of similar hardness prior to rivet or bolt installation, Deburring and trimming of holes in structural materials

Application: Especially for steel, metal, alloy aluminum, brass, plastic, iron, nickel, copper, cast iron and other structural materials

Design: Tapered point design allows reamer bits to enter irregular overlapping holes, aligning bolt holes