Best Inch Twist Drill Bits in 2026
Daisy
Last Updated: Feb 6, 2026
Daisy
Last Updated: Feb 6, 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 |
|---|---|---|---|---|
| Amoolo Direct | 9.90 | ✅ | ✅ | ✅ |
【10Pcs 1/4" TWIST DRILL BITS】10Pcs - 1/4”(Dia 6.35mm) x 2-3/4”(Flute Length 69.85mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【PREMIUM HSS TITANIUM Coating】Industry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Titanium coating increases wear-resistance and durability.
【FULLY GROUND PROCESS & 135° SPLIT POINT】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with straight shank prevents walking and makes drilling precise. No center punch is needed.
【MULTIPLE APPLICATION】Small Drill bits for soft metal, wood, plastic, steel within 9mm thickness, aluminum alloy and other soft metals. Ideal for DIY projects, household maintenance and repair.×NOT for glass, ceramic or concrete drilling.
【90 DAYS WARRANTY】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.84 | ✅ | ✅ | ✅ |
【10Pcs 1/8" TWIST DRILL BITS】10Pcs - 1/8”(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【PREMIUM HSS TITANIUM Coating】Industry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Titanium coating increases wear-resistance and durability.
【FULLY GROUND PROCESS & 135° SPLIT POINT】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° Split Point with straight shank prevents walking and makes drilling precise. No center punch is needed.
【MULTIPLE APPLICATION】Small Drill bits for soft metal, wood, plastic, steel within 8mm thickness, aluminum alloy and other soft metals. Ideal for DIY projects, household maintenance and repair.×NOT for glass, ceramic or concrete drilling.
【90 DAYS WARRANTY】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.90 | ✅ | ✅ | ✅ |
【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.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 Days Warranty】At Amoolo, we center on customer satisfaction. Get your drill bits today along with our 90-day Hassle-Free Warranty Policy, exchange or refund guaranteed for any product defect!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.90 | ✅ | ✅ | ✅ |
【10Pcs 5/32" Cobalt Drill Bits】10Pcs - 5/32”(Dia 4mm) x 2”(Flute Length 50.8mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【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.
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 DAYS WARRANTY】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.90 | ✅ | ✅ | ✅ |
【5Pcs 3/8" Cobalt Drill Bits】5Pcs - 3/8”(Dia 9.26mm) x3-5/8”(Flute Length 92.08 mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【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.
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.90 | ✅ | ✅ | ✅ |
WIDE APPLICATIONS - compatible with power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks, allowing for quick changing between multiple drill bits and screwdriver bits with just one power tool. suitable for soft metal, woodworking, home improvement, DIY lovers etc;
UPGRADED STRUCTURE - press in pin connection makes the bit and hex shank an integrated structure to prevent break off during drilling, greatly reduced the risk of drill bit snapped off from the hex drive;
ELIMINATES WOBBLING & CHATTER - the final straighten process is added before shipping from the factory. which keep the bit in a straight line during rotation and reduce chatter;
DESIGNED BLADEPOINT - these bits with a 135° split point keep centered without a pilot hole, full-ground body drill faster with fewer defects than common rolled drill bits. excellent chip removal and heat removal;
WHAT YOU GET - 10Pcs 1/4" HEX DRILL BITS, Diameter:1/4”(6.35mm) x Flute Length:2-3/4”(70mm) Metal Drill Bits. Come with a portable plastic case for easy select, storage and carry.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.84 | ✅ | ✅ | ✅ |
【10Pcs 1/8" Cobalt Drill Bits】10Pcs - 1/8”(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【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.
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.84 | ✅ | ✅ | ✅ |
【10Pcs 3/16" Cobalt Drill Bits】10Pcs - 3/16”(Dia 4.76mm) x2-5/16”(Flute Length 58.74mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【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.
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 Days Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amoolo Direct | 9.84 | ✅ | ✅ | ✅ |
【10pcs 1/16" Cobalt Drill Bits】10pcs - 1/16” Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.
【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.
【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
【90 DAYS WARRANTY】If you are not fully satisfied for any reason, please contact us for a 100% refund or replacement.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Amoolo | 9 |
We've carried out a comprehensive analysis of 26,862 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 $18.32, 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 9 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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