Best Spiral fluted Tapered Reaming Bit

SDS Plus Hammer Drill Bit 50Pcs 1/4 in. x 6 in. Masonry Concrete Rock Drill

✔️ 【SDS DRILL BIT DIMENSION】: 1/4" (Diameter) x 6" ( Overall Length).
✔️ 【APPLICATION】: SDS Plus Drill Bit Is Ideal for Drilling In Concrete, Masonry, Stone, Bricks and Other Construction Projects.
✔️ 【SDS DRILL CARBIDE TIP】: YG8C Tungsten Carbide Tip Ensure Quick Easy Drilling with Long Cutting Life.
✔️ 【SDS PLUS HAMMER DRILL DOUBLE FLUTE】:S4 SDS Double Spiral Flutes Keeps Fast Easy Chips Removal with Fast Cut Speeds.
✔️ 【SDS PLUS SHANK】: Made of Premium Quality of Crv Steel to Ensure the Long Cutting Life..

...ace hardening treatment make the performance even better..
[Non-stop]: Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle..
[Easy & Fast]: With our high-accuracy CNC processing and optimized spiral design over the years, our spiral flutes design cuts EASY, FAST and CLEAN, outperforming the average ones on the market. Compared to the Straight flutes, the Spiral flutes guide the debris out faster by its nature, making the drilling smoother and creating fewer burrs for the holes. Once you've tried our spiral design, there's no way back to the straight design..
[Heavy duty]: Cuts holes on Stainless steel, Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel..
[Multi Hole Sizes]: No need to buy a kit. This one step bit comes with 12 sizes so you can drill 12 different hole sizes, saving you time and effort to change bits. Marked sizes include: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"..

Self-feeding spiral design for extra-fast and easy hand reaming.
Suitable for hand reaming on pipe, sheet metal or for enlarging conduit box outlets.
The model 2-S reamer is not suitable for power reaming.
Pipe reamer has a 1/4-inch to 2-inch (6 mm to 50 mm) pipe capacity.

Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes.
Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal.
Clean, round holes: Two sharp cutting edges for true holes.
Wear mark indicator: For accurate diameter of holes.
Elongated four flute helix for faster material removal.

Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes.
Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal.
Clean, round holes: Two sharp cutting edges for true holes.
Wear mark indicator: For accurate diameter of holes.
Elongated four flute helix for faster material removal.

【Heavy Duty for Stainless Steel】 The Cobalt Drill Bits(1.3243 STEEL) can drill 6X longer life and 2X faster. This Drill bits is heavy duty for Stainless Steel, Metal, Galvanized Steel, Aluminum,Iron, Wood, PVC and Copper. If you want to drill faster and many holes on metal, please choose this step drill bit.
【Cobalt Bits】 Prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. This Drill bit can successfully drill more and more holes easily into Stainless Steel plate like knife through butter!.
【120-DAYS WARRANTY】 - If not satisfied, Any Reason, please contact us for 100% refund or replacement.
【13 Steps︱2-Spiral-Flute︱1/4" Shank】 13-STEPS: 1/8,5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8,13/32,7/16,15/32 to 1/2 inches. 2-Spiral Flute:Clears Chips faster.
【Cutting Fluid】 Cutting Fluid must be poured during work for longer life! Prohibit water-cooling to prevent!.

Designed to remove broken studs, bolts, socket screws and fittings.
Aggressive left hand spiral design for extra gripping power.
Spiral flutes are designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the extractor's grip increases.
Extractor size and recommended drill bit size are etched on each tool.

Strong core: SDS max bits have tapered core for bit strength and maximum durability, especially when drilling deep holes.
Aggressive material removal: Two stage flute design with variable helix pattern of DEWALT SDS hammer drill bits allows for efficient debris removal.
Clean, round holes: Two sharp cutting edges for true holes.
Wear mark indicator: For accurate diameter of holes.
Elongated Four Flute Helix for Faster Material Removal.
For use with electric or cordless rotary hammers..

High Speed Steel: Titanium plating combination drill taps are made of high speed steel, which can ensure sharpness, fast execution and maintain strength and efficiency..
Spiral Flute Design: This is a tap drill with a spiral flute design, which has a better chip removal effect..
Processing: The tap can process wood, plastic, aluminum, tin alloy, Mg alloy, and the thickness of the workpiece is less than 5mm..
Chamfer in One : Combination of hole tapping and chamfering, convenient operation, hand drill, bench drill, and hexagonal chuck tapping machine are optional..
Improve Work Efficiency: The drill bit can quickly complete the work, which greatly saves processing steps and time costs, and improves work efficiency..

Designed to remove broken studs, bolts, socket screws and fittings.
Aggressive left hand spiral design for extra gripping power.
Spiral flutes are designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the extractor's grip increases.
Extractor size and recommended drill bit size are etched on each tool..