Best Inch Twist Drill Bits in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.77 | ✅ | ✅ | ✅ |
【Dimension】- The bit diameter and shank diameter of this twist drill bit is 6.8mm / 0.27-inch, the cutting length is 70mm / 2.76-inch and total length is 105mm / 4.13-inch, Hardness (HRC) is 62-63.
【Material】- Twist Drill is made of high speed steel, high speed steel construction is designed for durability and extended tool life.
【Feature】- Nitrogen Oxidation and Heat Treatment can increase the hardness and corrosion resistant of twist drill bit.
【Application】- Perfect for copper, aluminum alloy, as well suit for wood.
【Special Design】- Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.77 | ✅ | ✅ | ✅ |
【Parameter】- Drill Bit Diameter: 0.8mm/0.03-inch; Material: HSS, Emery; Surface Treatment: Electroplated Emery; Flute Type: Spiral.
【Material】- Diamond coated high speed steel(HSS) is made by spiral technology, has both toughness and hardness, is not easy to break. The drill bit is sharp, and is easy for chip removal.
【Applicable Machine】- Widely used in rotary tool such as hand drills, drill press, flex shafts, bench drill and hanging mill.
【Wide Application】- Suitable for drilling small holes on glass, metal, sea shells, jade, pearls, marbles, stones, drywalls and son on. Due to the different hardness of the material, the effect is also different.
【Note】- When drilling, it is necessary to add cutting fluid in time to lubricate and cool down, which can get a better drilling hole wall, extends the service life and drilling accuracy.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.77 | ✅ | ✅ | ✅ |
【Dimension】- Bit diameter: 2.9mm / 0.11-inch; Shank diameter: 2.9mm / 0.11-inch; Cutting edge length: 33mm / 1.30-inch; Total Length : 61mm / 2.40-inch.
【Material】- The twist drill is made of M35 high-speed steel, with high wear resistance, toughness and bending strength. And has a surface treatment using grinding and roasted yellow processes. Hardness up to 68.
【Equal Reduced Shank】- Equal reduced shank drill expands the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes.
【Advantage】- High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance, grinding and roasted yellow can apply lubricant better for smoother drilling and is more durable and corrosion resistant.
【Versatile Uses】-For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass and metal materials, as well suit for wood, plastic.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.77 | ❌ | ❌ | ❌ |
【Dimension】- The bit diameter of this double end HSS cobalt twist drill bit is 5.2mm / 0.20-inch.
【Material】- Made of high quality HSS material, cobalt high speed steel to ensure the double end drill bits strong, good wear resistance and double life-time compared with other drill bits.
【Advantage】- Double ended sides prolong tool life and increases the amount of service by two before resharpening bit.
【Flute Figures】- Efficient helix flute design to keep the quickest removal of chips and debris through flute during penetration of workpiece.
【Application】- Applicable for variety of material drilling, such as stainless steel, steel, metal, iron, cast iron, copper alloy, aluminum, plastic.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.76 | ✅ | ✅ | ✅ |
【Features】-Total Size: 150mm/5.9-inch(L); Bit Type: Hexagon.
【Material】-This flexible shaft is made of high quality metal which make it practical and durable.
【Durable】-Spring-loaded ball detents lock in to prevent parts from slipping into machinery.Square drive radius corners reduce tool and socket wear.
【Widely compatible】-This extension shaft is compatible with Small wrench, cordless screwdriver, low speed DC hand drill, pneumatic screwdriver, torque drill, electric screwdriver.
【Widely used】-Bends,twist and turns to use drill into tight and confined spaces. Suitable for ordinary hand drill and electric drill with perfect performance. Applied to hardware maintenance and repair, including computer chassis, electrical cabinets, furniture, electrical appliances, etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.76 | ✅ | ✅ | ✅ |
【Dimension】- The shank diameter of this center drill is 1/2-inch, the working edge diameter is 5mm / 0.21-inch,and the total length is 65mm / 2.56-inch.
【Material and Features】- High Speed Steel, high hardness, rustproof, solid, durable and excellent for use.
【Durable and Resistance】- Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance.
【Convenience】- Easy to use and install, change bits fast which one-handed load and release. Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum and so on.
【Precisely Processing】- Center and spotting drills are used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Utoolmart® US | 9.77 | ✅ | ✅ | ✅ |
【Dimension】- The shank diameter of this center drill is 4mm / 0.16-inch, the bit diameter is 1.5mm / 0.06-inch, the working edge length is 3mm / 0.12-inch, and the total length is 38mm / 1.50-inch.
【Material and Features】- High Speed Steel, high hardness, rustproof, solid, durable and excellent for use.
【Durable and Resistance】- Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance.
【Convenience】- Easy to use and install, change bits fast which one-handed load and release. Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum and so on.
【Precisely Processing】- Center and spotting drills are used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Utoolmart | 7 |
We've carried out a comprehensive analysis of 131 reviews on twist drill bits, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select twist drill bits priced around $9.05, with top brands including amoolo, gmtools, behappy, craft911, caroller, rocaris, dewalt, hurricane and becollo and sabre tools
Our team of expert editors reviewed these high-quality items and handpicked the top 7 twist drill bits for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the home improvement category. These include amoolo direct, gmtools us, goldmoon industry, excellent quality!, drill bits center, rocaris direct, amazon.com, sumex tools and gmtools us ii and behappy crafts co.,ltd. .
We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which twist drill bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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