Best Cmt Long Length Drill Bits in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 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 |
|---|---|---|---|---|
| Amadeo City | 9.87 | ❌ | ❌ | ❌ |
Specification: Cutting edge diameter (CED): 1mm; cutting edge length: 9.5mm; shank diameter: 3mm / 1/8" (approx.) overall length: 38mm / 1-1/2" (approx.)
Long Tool Life: With high hardness, high wear resistance, high strength, resistance to bending, anti-impairment. Made from Tungsten Carbide for precise, easy experience
Spiral Flute Bits: Tip spiral flute drill bits with sharper cutting edge, reduce cutting force and prevent drill broken, improve the drilling accuracy
High Precision: With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left
Great Use: Great for PC Boards, Plastics, Fiberglass, Wood, Soft Metals. Fit for: PCB drilling machines, engraving machine, CNC and high precision special drilling equipment
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.86 | ✅ | ✅ | ✅ |
PCB Drill Bit: Cutting edge diameter: 1.2mm / 0.047"; shank diameter: 3.175mm / 1/8"; overall length: 38mm / 1-1/2". High hardness, good toughness, wear resistance, high strength, resistance to bending.
Wide Applications: Suitable for drilling PCB, acrylic, plastics, fiberglass, wood, aluminium, soft metals. Used on PCB drilling machines, engraving machine, CNC lathes, machining center. Use vertically and take good control of your CNC speed.
Sharp Cutting Edge: Sharp cutting edge provides smooth cutting, reduces cutting force, prevents drill broken, and improves the drilling accuracy. Spiral chip space design for fast and clean chip removal. The tool set can work quickly and cleanly, no glitches or scrap left.
Tungsten Carbide Tool: Long-lasting bits are made from tungsten carbide for precise and easy experience. Carbide can run at higher speed than high-speed steel. Carbide material with good milling and cutting performance, can ensure high work efficiency.
Tips: The longer the length of the tool clamped by the chuck, the better. If the clamping length is shorter, you need to lower the feed rate and cutting speed to reduce vibration and extend the tool life. Combined with the material to be processed, select an appropriate feed rate and cutting speed.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 1mm / 0.04-inch, Flute Length: 50mm / 1.97-inch, Shank Diameter: 1mm / 0.04-inch, Total Length: 80mm / 3.15-inch; 10 x Mini Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
[Specifications]- Twist Drill Bits Diameter: 2.5mm / 0.1-inch; Drill Bit Length:100mm / 3.94-inch; Shank Diameter: 2.5mm / 0.1-inch; Total Length: 160mm / 6.3-inch; 2 x Straight Shank Twist Drill Bit
[Strength and Hardness]- Made of high-speed steel. HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life.
[Twisted Design]- With the twisted design, it can improve cutting accuracy by centering the tip. It can avoid displacement of the drill bit during work, and at the same time remove debris and particles faster and easier.
[Professional and DIY Use]- Suitable for processing non-ferrous metals, such as copper and aluminum, and also suitable for hard plastics. When it cannot penetrate, try to adjust the RPM. Suitable for electric hand drill, bench drill and machine tool equipment.
[Note]- Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.86 | ✅ | ✅ | ✅ |
Twist Drill Bits: Drilling Diameter: 3.3mm / 0.13"; Flute Length: 35mm / 1.38";Overall Length: 60mm / 2.36". Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches.
Wide Applications: Suitable for precision cutting of stainless steel, alloy steel, carbon steel, tool steel non-ferrous metal, copper, plastics, etc.. Designed for drilling abrasive materials when drilling accuracy must be maintained. Can be used in high temperature drilling applications.
Material: Constructed from YG10X carbide (tungsten steel), the drill bit is hardened up to 91.5HRA, wear resistance, corrosion resistance, heat resistance, and the bending strength is greater than or equal to 2800 N/mm2.
Features: Carbide tool offers long tool life and faster cutting speeds than other substrates, and it is higher hardness but is more brittle. Carbide material with good cutting performance, can ensure high work efficiency.
Tips: Used on machining centers, CNC lathes. Adapt to several kinds of cooling conditions, such as oil mist, water, oil, air cooling. It is not recommended to be used with a hand drill. Hand drill is easy to shake, poor stability, which makes drill bit easy to twist off.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 2mm / 0.08-inch, Flute Length: 60mm / 2.36-inch, Shank Diameter: 2mm / 0.08-inch, Total Length: 100mm / 3.94-inch; 5 x Mini Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Specification: Drill Bit Diameter: 9.5mm / 0.37-inch; Flute Length: 160mm / 6.3-inch; Shank Diameter: 9.5mm / 0.37-inch; Total Length: 250mm / 9.84-inch; 1 x Lengthened Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 12mm / 0.47-inch; Flute Length: 155mm / 6.1-inch; Shank Diameter: 12mm / 0.47-inch; Total Length: 250mm / 9.84-inch; 1 x Lengthened Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 10mm / 0.39-inch; Flute Length: 126mm / 4.96-inch; Shank Diameter: 10mm / 0.39-inch; Total Length: 200mm / 7.87-inch; 1 x Lengthened Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 6.8mm / 0.27-inch; Flute Length: 120mm / 4.72-inch; Shank Diameter: 6.8mm / 0.27-inch; Total Length: 200mm / 7.87-inch; 1 x Lengthened Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
5/8" x 9.8" x 13.4": Hammer drill bits is with 5/8" bit, 9.8" long significant depth, 13.4" total length
Carbide Tipped Bit: Carbide-tipped bit heads are harder, tougher and more resistant and durable to extreme loads for longer tool life and faster performance in masonry.Steel bits are heat forged for strength and longevity with a sharp Carbide Tip edge design for maximum impact on masonry/concrete material, allowing for effective and precise drilling
Four Hollow Square Shank: Optimized 4-flute design to reduce bit stress when drilling, keep the bit running cooler, and for fast dust removal
Wide Application: Rotary hammer drill bit is for handling a wide variety of drilling applications including concrete, brick, block and more
Tips: Collision of concrete iron is strictly prohibited when used in concrete
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Specification: Drill Bit Diameter: 1mm / 0.04-inch, Flute Length: 70mm / 2.76-inch, Shank Diameter: 1mm / 0.04-inch, Total Length: 120mm / 4.72-inch; 20 x Mini Drill Bits
High Speed Steel: Made of high-speed steel, with high hardness, heat resistance, wear resistance, durability and long service life.
Extended Drill：The jobber extended drill is suitable for a wide range of applications, allowing you to access hard-to-reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient.
Twisted Design: Split point tip and twist design increases cutting speed while easily self-centering to prevent movement. The twisted design of the drill bit quickly removes drilled chips, then leaving a smooth hole.
Notice: Please keep it cool and gentle when using it, the correct use can greatly extend the life of the twist drill.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amadeo City | 9.87 | ✅ | ✅ | ✅ |
Drill Bits: Cutting edge diameter: 2.8mm / 0.11"; cutting edge length: 55mm / 2.17"; shank diameter: 2.8mm / 0.11"; overall length: 100mm / 3.94"; cutting hardness (max.): HRC55. Sharp cutting edge provides smooth cutting and no glitches.
Wide Applications: Suitable for drilling materials below HRC55, such as stainless steel, alloy steel, tool steel, carbon steel, aluminum alloy, etc.. Used on machining centers, drilling machines, CNC lathes, CNC engraving and milling machines.
Carbide Material: Made of super fine grain carbide, it has high hardness (HRC92-94), wear resistance, heat resistance, and high bending strength. With good milling and cutting performance, carbide can run at higher speed than high-speed steel.
Features: Large and spiral chip space design for fast and clean chip removal. Titanium nanometer coating provides excellent corrosion resistance, greatly improves wear resistance and hardness, and reduces the coefficient of friction.
Tips: Suitable lubricant is conducive to cutting or cooling. The longer the length of the tool clamped by the chuck, the better. Select an appropriate feed rate and cutting speed to improve the tool life.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Uxcell | 53 |
We've carried out a comprehensive analysis of 1,311 reviews on long length drill bits, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select long length drill bits priced around $9.24, with top brands including somada, neiko, bosch, drill america, fulton, dewalt, baker and bolt, dudua and comoware and drill hulk
Our team of expert editors reviewed these high-quality items and handpicked the top 13 long length 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 carolina tools, amazon.com, peachtree woodworking supply inc, awadeals, xintang shengrui trading company, tianhe district, tg tools, drillhulk, muxizac-us and lldsimex and chiciris .
We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which long length 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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