Best 1 4 in industrial drill bits list 2020 – Top Pick

“As an Amazon Associate I earn from qualifying purchases.”

We analyzed
6594 of user reviews
about the 1 4 in industrial drill bits to provide you with the best list. Our list, which is updated daily, honestly presents the ranking of the best 1 4 in industrial drill bits.

Best 1 4 in industrial drill bits 2020 list

Bestseller No. 1
Supreme Wet Drill Core Bits for High PSI/Reinforced Concrete 4" Diameter 1-1/4"–7 Threaded #30/40 Diamond Grits
  • Designed for drilling higher PSI concrete, concrete with medium level of rebar reinforcement, and other hard masonry. #30/40 diamond grit
  • Diameter: 4 Inch
  • 1-1/4"-7 Thread
  • Drilling depth: 14"
  • Wet use only. With dedicated core drill machines our lab test has shown 40-60% improvement in both speed and lifetime compare to standard wet core bits.
Bestseller No. 2
Wet Drill Core Bits for Hard Concrete, Brick, and Block - 4" Diameter 1-1/4"-7 Threaded #30/40 Diamond Grits
  • #30/40 diamond grit, designed for drilling hard concrete, masonry, hard brick, and other hard materials
  • Diameter: 4 inches
  • Thread: 1-1/4"-7 threaded
  • Drilling depth: 14"
  • Drilling method: WET only
SaleBestseller No. 3
ORXPLUS Tools 2PCS Deburring Chamfer Tool Set, Deburring External Drill Bit, Countersink Drill Bit for Fit 1/8"-3/4"(3mm-19mm)
  • Drill use 0-400 RPMs Fit 1/8' (3mm) to 3/4' (19mm)
  • Great for repairing damaged bolts and fasteners Tube Internal Chamfering Facilitates Tube Combination
  • Outer works on -Round Stock -Bar Stock -Threaded Rod -Screws and more
  • Inner Chamfer Tool Works On -Steel Pipe -Iron Pipe -Stainless Steel Pipe -Copper Tube -Aluminum Tube -Hard Plastic Tube
  • Effective on -Stainless -Hardened Steel -Mild Steel -Copper -Brass -Wood -Fiberglass -Hard Plastic
Bestseller No. 4
Drill Hog 13 Pc Hi-Molybdenum M7 Drill Bit Set 1/16"-1/4" Drills USA
  • 1/16" to 1/4" by 64ths (Does Not Skip Any Sizes)
  • Hi-Molybdenum M7 Steel
  • 135 Degree Split Point Prevents "Walking"
  • Made by Drill Hog USA
  • Lifetime Warranty
Bestseller No. 5
2pcs 5mm&1/4" Black Hinge Drill Bits Reaming Drilling Wood Plastic 1/4inch Hex Shank for Woodworking DIY(2pcs combination)
  • 【UPGRADE MATERIAL】The yellow tip is made from high quality brass which is wear-resistant, rust proof and durable.
  • 【DURABLE】High speed steel 4241 drill bit is sharper and has a longer service life than traditional one.
  • 【SUITABLE FOR VARIOUS HARDWARE HOLES】These hinge bit can reliably and accurately center the holes for mounting hinges and other types of hardware.
  • 【WIDE APPLICATIONS】Widely used on wood and plastic, chip will be removed automatically from these two side holes.
  • 【TWO SIZE 5MM&1/4INCH】There are 5mm and 1/4inch drill bits available for drilling of different sizes.
SaleBestseller No. 7
12 inch Core Drill Bit Extension with 1-1/4"-7 Thread for Core Drill
  • Extesion Lenght: 12", Overall length : 14", Weight: 1.4KG.
  • Female 1-1/4" -7 thread to male 1-1/4" -7 thread
  • Shafts fit most core drills.
  • Work both dry and wet with core drill.
Bestseller No. 8
Neiko 10218A Countersink Drill Bit Set, M2 High Speed Steel, 1/4” Tri-Flat Shank | 1/4”-3/4”, 5 Piece Set with Carrying Case
  • Set of five 1/4" countersink drill bits with precision-ground 82-degree tips for drilling into wood, soft metals, rubber, plastic, and more
  • Made of high quality M2 material construction for extended bit life and 1/4" shank fits common handheld power drill
  • Five-flute design reduces vibration for smoother drilling and tri-flat shank allows easy gripping
  • Set contains 1/4", 3/8", 1/2", 5/8", and 3/4" countersink drill bits that are very commonly used
  • Sturdy aluminum case with handle included for carrying and storage
Bestseller No. 9
Makita D-00876-25 1/4-by-6-1/4-Inch Standard SDS Bit, 25-Pack
  • Thruster style carbide tip penetrates on contact and plows through rebar
  • Thruster style re-inforced ground flute for efficient dust removal
  • Dynamic chisel shaped head keeps bit in contact with material at all times
Bestseller No. 10
12 PCS,1/4", HSS Black and Gold Coated Twist Drill Bits, Metal drill, ideal for drilling on mild steel, copper, Aluminum, Zinc alloy etc. Pack in Plastic Bag
  • Bright finish: Classic M2 High Speed Steel construction with Bright Finish for proven capability and durability.
  • Strength & Hardness: Made with HSS M2 steel, Rock wall Hardness Level HRC 62-63.
  • Package & Size: 12 Pieces in a plastic bag, Diameter 5/16 inch, Total length 4-1/2 inch, Working length 3-3/16 inch.
  • Professional & DIY Use: For use on metal, wood & plastics. Not For Use On Concrete / Masonry / Stainless Steel. Perfect match for workshop or service vehicles.
  • 135 Tip & Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.

Last update on 2021-01-27 at 00:50 / Affiliate links / Images from Amazon Product Advertising API

Best Editor’choice:

Conclusion:

We have listed the top 10 best 1 4 in industrial drill bits above. We hope you can choose the best one from that list. Thank you!