Best Metric Countersink Drill Bits in 2026

【Depth adjustment does not require a wrench】 - Ezenkorea's Adjustable Depth Countersink Drill Bit is a game-changer for any workshop. No more fumbling with wrenches - our self-adjusting depth control allows for quick and accurate results with just a turn of the knurl. And with compatibility with top brands like Dewalt, Milwaukee, Makita, and Bosch, this versatile combo drill accessory is a must-have. Upgrade your drilling game and get Ezenkorea's Adjustable Depth Countersink Drill Bit today!

【To Prevent Scratches On The Surface】 - Get precise and reliable results every time with it. Its built-in stopper prevents scratches on the wood surface, while the predetermined depth ensures stable and accurate drilling. This versatile tool is perfect for drilling straight lines, and is a must-have for carpenters and woodworkers. And with its portable steel design, it's the best option on the market. Upgrade your woodworking game with Ezen's Countersink Adjustable Drill Bit today!

【Quick Set Up The Wood Working Depth】 - Take your woodworking to the next level with our cutie boy. Easily set the desired work depth for screws and wood thickness for precision results every time. This unique feature sets our product apart from others on the market. And for even more efficiency, use our bit with the Ezen Plug Cutter. When working with metal plates, be sure to purchase and use our metal kit for the best results. Upgrade your workshop with our Adjustable Drill Bit today!

Diameter (D) 1/4

Cutting height (B) 1/2

Shank (D) 1/4

FTG Parabolic Flute offers wider flute space, dispersing chips away from the cutting edges more rapidly and increasing coolant flow. The parabolic spiral allows chips to flow up quickly leaving less damage to be corrected after drilling. Package contains 3 Piece Same Size 9/64" (#6 screw) Replacement Tapered Drill Bit Only Without Four-cutter Countersink, made to replace the 9/64” bit of #6 Countersink FTG 6810PRB

FTG Parabolic Flute allows chips to flow up quickly leaving less damage to be corrected after drilling. Improved chip evacuation leads to a better surface finish in the hole. The parabolic drill tip can slip-on wood surfaces; it is recommended to hold it rigidly and drill slowly until the tip grabs the material

Higher Quality cutters FTG Parabolic Flute drill bits are manufactured from premium High Speed Steel M2 Grade 6542. Parabolic flutes are constructed with a wider flute shape for increased chip flow

32 Pack Woodworking Chamfer Drilling Tool Set – Nice set of specialized bits useful in creating a nice finished effect for woodworking. Ideal for wood, particle board, fiberboard, logs, plastic boards, PVC pipes used on hand drill, bench drill and electric drill.

7Pcs Countersink Bit for Wood – Made of high carbon steel with high hardness & abrasive resistance, large chip flute and five edge chamfers can drain saw dust faster and easier(Size - 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm). With 1pc hex L-wrench, you could easily remove and adjust counter sleeve depth and drill depth.

8Pcs 3/8" Shank Wood Plug Cutter Drill Bit Set – Made of durable carbon steel, it is used for tapered 1/4", 3/8", 1/2", 5/8" corks to cover recessed screw holes or hide imperfection. Can cut the plug 22mm/23mm/25mm/26mm in depth as well.

【Premium Material】--Carbon Steel, titanium-coated for extended working life

【4 Size】--Wood plug cutter tool drill bits with 10mm shank, diameter sizes include 1/4";3/8";1/2";5/8" (6mm/10mm/13mm/16mm). you can use to create different size of plugs

【Good Effect】--The 4 pcs standard cutters to eliminate imperfections in wood.The 4pcs chamfered cutters make tapered plugs to fill countersink holes.the plug cutter set makes perfect plugs for counter-bored holes

Drill accurate center holes in material prior to turning, or use as a starter bit for accurate holes

High speed steel (HSS) made, stable performance and Durable

Sharp and twisted drill will make the drilling be more easy and effortless

Our diamond beveling chamfer bit set includes 2 different shaped of diamond router bits with a threaded adapter. They can be used with the adapter to polish the hole.

With our diamond cone grinder bit and diamond milling drill bit, you can easily create holes of different sizes (0-2 inches) without having to purchase multiple core drills, saving you time and effort.

Our ceramic tile chamfering tool bits are made of high-quality diamond and sturdy metal materials, ensuring safety, reliability, high hardness, and strength for more effective cleaning and trimming, resulting in smooth and beautiful hole finishes.

Material: High Speed Steel (HSS), Main Drilling Body: 9x70mm / 0.35"x2.8" (D*L), Total Length: 180mm / 7.1 inch, Bore Drill Stop: 19*9*8mm (OD*ID*T).

This countersink drill bit can accurately drill a smooth hole and fast discharge chips, centering for sharp and precise countersinking.

Universal round straight shank fits for most drills. High speed steel(HSS) body is strong enough with high resistance to rust.

Material: High Speed Steel (HSS), Hex Shank Diameter: 6.35mm, Main Drilling Body: 9.5x70mm / 0.37"x2.8" (D*L), Total Length: 160mm/ 6.3 inch, Bore Drill Stop: 19*9.5*8mm (OD*ID*T).

This countersink drill bit can accurately drill a smooth hole and fast discharge chips, centering for sharp and precise countersinking.

Universal hex straight shank fits for most drills. High speed steel(HSS) body is strong enough with high resistance to rust.

Tap and Drill Bit: Tap thread size: 5/16-24 UNF, drill bit diameter: 6.9mm / 0.27". High-speed steel tool has high hardness and toughness for wear resistance.

Straight Flute Tap: Straight flute design, downward chip removal. Left hand thread cutting, fast tapping with accuracy. Suitable for processing through holes. For drilling and tapping aluminum, die steel, stainless steel, bronze, hard plastics

Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Titanium coating provides excellent corrosion resistance and improves wear resistance.

Mill cutters are made of hard high speed steel, usually used to be assembled on milling machine

Suitable for milling of copper, aluminum, steel, cast iron, etc

High toughness, abrasion resistance, high-speed cutting for the high hardness