Daisy
Last Updated: Feb 8, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium
135° split point tip prevents drill from walking
Round shanks allow use with a wide variety of tool holding systems
Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
6" overall length for drilling where extra length for reach is required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium
135° split point tip prevents drill from walking
Round shanks allow use with a wide variety of tool holding systems
Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
6" overall length for drilling where extra length for reach is required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium
135° split point tip prevents drill from walking
Round shanks allow use with a wide variety of tool holding systems
Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
12" overall length for drilling where extra length for reach is required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MAX-CRAFT | 8.56 | ❌ | ❌ | ❌ |
✔️【 COBALT DRILL BIT DIMENSION】:1/8"(Diameter) x 1-5/8"( Flute Length) x 12"(Overall Length)
✔️【 COBALT MATERIAL】: HSS(M35) Cobalt Steel is the premium material with high hardness and red hardness to enable long drilling life and fast drilling performance.
✔️【 SURFACE TREATMENT】: The Gold Oxide Ember finished surface treatment strongthen the hardness of drill bit body to ensure the long drilling life and better drilling performance.
✔️【 SPLIT POINT ANGLE 135】 DEG.: No center punch is needed- the aggrevsive 135 deg. Split Point quick-cutting points are self- centering and penetrate quickly with less pressure. will not "walk" or"wander".
✔️【 APPLICATION】: Best used for drilling deep hole in metal, high-carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MAX-CRAFT | 8.51 | ❌ | ❌ | ❌ |
✔️【 COBALT DRILL BIT DIMENSION】:1/8"(Diameter) x 1-5/8"( Flute Length) x 6"(Overall Length)
✔️【 COBALT MATERIAL】: HSS(M35) Cobalt Steel is the premium material with high hardness and red hardness to enable long drilling life and fast drilling performance.
✔️【 SURFACE TREATMENT】: The Gold Oxide Ember finished surface treatment strongthen the hardness of drill bit body to ensure the long drilling life and better drilling performance.
✔️【 SPLIT POINT ANGLE 135】 DEG.: No center punch is needed- the aggrevsive 135 deg. Split Point quick-cutting points are self- centering and penetrate quickly with less pressure. will not "walk" or"wander".
✔️【 APPLICATION】: Best used for drilling deep hole in metal, high-carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BOYOUYS | 7.32 | ✅ | ✅ | ✅ |
✅【Five-blade design】Each countersunk drill adopts five-blade blade design, which can reduce vibration and prolong life, achieve smoother drilling, with 1/4" metal hex.
✅【Compact Grinding】Precision grinding 82° tip for drilling holes on most medium hardness stainless steel, copper, aluminum, wood, plastic.
✅【M2 HSS Cobalt Layered Drill Bits】M2 Cobalt Coated, each metal countersunk drill bit is made of high quality M2 HSS material, this countersunk drill bit set is excellent in heat, corrosion and rust resistance to reduce friction and run cooler.
✅【Universal Compatibility】Surface black oxide treatment increases corrosion resistance, and the five-blade design helps create a strong connection between the screw and the material.
✅【Clear Sizes】Meticulously crafted drills with very high visibility numbers available in very common 1/4", 3/8", 1/2", 5/8" and 3/4" drill sizes.
✅【100 extra-long warranty period】:if you have any questions about the product, please contact us and we will answer you within 12 hours. If the hexagonal handle breaks, refund or replace for 100% .
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NewShark | 9.56 | ✅ | ✅ | ✅ |
✅【M35 TWIST HEX DRILL BITS SET】Made from M35 Cobalt Steel with Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.
✅【13PCS SET COMBINATION】13 most common sizes (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") to meet all needs, a drill holder with size index is included in the set for easy storage and organization.
✅【FULL GRINDING PROCESS AND 135° SPLIT POINT】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
✅【QUICK CHANGE】1/4 inch hex shank is easier and safer to install in all power tools, especially for locking quick change chucks without slipping and falling off.
✅【MULTIPURPOSE】Small drill bits for wood, plastic, steel, aluminum alloy and stainless steel. Suitable for home DIY and general construction/engineering use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| qingshiyup | 8.81 | ✅ | ✅ | ✅ |
✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.
✅【29PCS SAE DIRLL BITS SET】The set includes 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, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8, 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64 and 1/2 inch. Comes in metal indexed storage case for easy storage.
✅【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
✅【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling.
✅【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact WildBossy.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Long length drill bit has an extended flute and overall length to drill deeper and reach farther than a jobber length drill bit
Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
Gold oxide finish lubricates and provides wear resistance on ferrous materials
Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
Extra thick web provides increased strength and rigidity compared to standard drill bits
Made in the USA
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Drill America | 3 |
| Max-Craft | 2 |
| Boyouys | 1 |
| Chicago Latrobe | 1 |
| Newshark | 1 |
| Wildbossy | 1 |
We've carried out a comprehensive analysis of 4,742 reviews on extra long drill bits, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select extra long drill bits priced around $22.26, with top brands including neiko, drill america, comoware, baker and bolt, lldsimex, fulton, max-craft, wesleydrill and dudua and irwin tools
Our team of expert editors reviewed these high-quality items and handpicked the top 9 extra long 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 amazon.com, coneve, awadeals, lldsimex, tg tools, peachtree woodworking supply inc, max-craft, haijier tools and xintang shengrui trading company, tianhe district and carolina tools .
We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which extra long drill bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.