Best Hex Drill Bits in 2026

2" Dry Diamond Core Drill Bit - Cutting holes for split AC units plumbing, shower/tub grab bars, shower plumbing, faucet, garbage disposal button and more projects

Excellent Hole Saw for Rough Materials – Fast clean cut through stucco, bricks, concrete, ceramic tile, porcelain, tabby stone, brick, mortar, granite, marble, quartz, etc. Both Dry and Wet will do, and vac will be helpful for dry drilling

Work with Angle Grinders and Electric Drills – Package including a 2 Inch Diamond Hole Saw with 5/8-11 female thread for most Angle Grinders, as well as an arbor to 3/8" Hex Drill Shank which can fit in Power Drills

Specifications- Hole Saw Diameter 1-1/4 inch(32mm); Connection 5/8 -11 arbor; Diamond height 5/8inch (15mm), Total length 2/4inch (61mm). Max Cutting depth1-5/8inch (40mm)

Heavy Duty - This Vacuum brazed diamond drill core bit is able to dry, wet drill through porcelain, tile, granite, marble, stone, masonry, block, brick, and non-reinforced concrete

Compatible Machines - Dry Diamond Core Drill Bit built with 5/8-11 threading female arbor for most popular Angle Grinders, wet polisher; Do not use this adapter and Core Drill Bits on Hammer Mode

Wide Range of Sizes: Including 7 Pieces of Plain Center Drill Bits Set range in size 1.0 1.5 2.0 2.5 3.0 4.0 5.0 to meet different needs

Accurate: A 60-Degree Angle center drill is very useful in drilling accurate center holes, 60-degree countersink holes or starter holes for bigger drill bits in metal-working

High Quality: Our center drill bits made of high quality M2 High speed steel, solid and high temperature wear resistant

VERSATILITY – Comes in 5 most popular sizes bits 1/4, 3/8, 1/2, 5/8, 3/4 inch counter sink drill bits.

PRECISION - 82-degree tip drills countersink holes into most machinable metals, plywood, softwood, hardwood, fiberglass plastic, mild steel, don't work on stainless.

COMPATIBILITY – 1/4” round shank fits all handheld and stationary drills.

Full Size Set: 8 Packs of Dry Diamond Core Drill Bits 2 pieces of 3/16inch (5mm), 2 pieces of 1/4inch (6mm), 2 pieces of 5/16inch (8mm), 1 piece of 3/8inch (10mm) and 1 piece of 1/2inch (12mm)

Dry Drilling Design: Each Diamond Drill Bit is integrated with wax lubricant inside; it will melt and cool the bit tip to prevent diamond loss, let the bit cool after each hole

Clean Holes in Tiles: Dry Diamond Core Bit set equipped with Vacuum Brazed Diamond Technology, able to drill clean holes in all types of tiles, porcelain, granite, ceramic (not for wood)

Universal 1/4 inch Hex Shank -- fit a variety of quick-change chucks, drills or drivers; Add Versatility to Your Tools, including 3 sizes of Dry Diamond Core Drill Bits for drilling holes with Diameter of 1/4“ (6mm), 5/16” (8mm) and 3/8” (10mm)

Vacuum Brazed Diamond Technology -- Great for drilling clean holes to hard materials especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick (not for wood)

Dry Drilling Design -- Diamond Drill Bit integrated with wax lubricant inside which melts while dry drilling and cools the cutting surface; Water can be used as additional cooling to prolong the life of the bit.

VERSATILITY – Ideal counter sink tool for the tool box, including 5 most popular sizes: 1/4, 3/8, 1/2, 5/8, 3/4inch counter sink drill bits

PRECISION – These Countersink Drill Bits are beautifully machined to achieve exact countersink holes fit for 82-degree flat heads screws; allows the screw heads to be flush and even with the surface of the material being utilized

SHARP- Five-flute design reduces vibration and removes chip better and eliminates the need for fussing with depth, provides smoother drilling experience and extended bit life

8 Packs 4 Sizes 2 Types: Package including 4 pieces of Four-Tooth Chamfered Tapered wood plug cutters, as well as 4 pieces of straight Plug Cutters, both in size 1/4”, 5/16”, 3/8” and 1/2” diameter

Wood Plug Cutters: Ideal for cutting tapered or round plugs for woodworking such as concealing screw head, matching wood grain, filling countersunk holes, and removing imperfections in workpiece

Quick 1/4” Hex Shank: designed for convenient change and sturdy grip in drill presses with chuck accepts 1/4 Hex Shank dowel cutters.

6 Sizes Dry Diamond Core Drill Bits - Great tool to add to your collection for cutting holes for split AC units plumbing, shower/tub grab bars, shower plumbing, faucet and more projects requires holes in size 3/4”, 1”, 1-1/4”, 1-3/8”, 1-1/2”, & 2”

Excellent Hole Saw for Rough Materials – Fast clean cut through stucco, bricks, concrete, ceramic tile, porcelain, tabby stone, brick, mortar, granite, marble, quartz, etc. Both Dry and Wet will do, and vac will be helpful for dry drilling

Work with Angle Grinders andElectric Drills – Package including 6 different sizes of Diamond Hole saw built with 5/8-11 female thread for most Angle Grinders, as well as an arbor to 3/8” Hex Drill Shank which can fit in popular Power Drills and Machines, in a well-organized carrying case

3 in 1 Combination – Our units combine Drill Bit / Countersink / Counterbore in one tool, with which you can get perfect hole for #4 #6 #8 #10 #12 #14 or #16 screws in one step

82 Degrees Countersink 3/8” Counterbore Bits - You can either have the head of the screw fit flush with the surface, or below the surface then conceal it with matching wood plugs; ideal tool for dowel buttons or plugs.

Adjustable Cutting Depth – the sharp M2 Pilot Hole Drill Bit is detachable, so you can adjust the drill depth according to the length of your screw; then tighten it with the hex key (included) to the Countersink / Counterbore sleeve

Easier & Faster – 3 in1 Drill Countersink and Counterbore in one step, with this 7 Pcs M2 Countersink Set you can get perfect counterbored holes for #4 #6 #8 #10 #10 #12 #12 screws without changing bits

Meet All the Needs – with popular 82 Degrees Countersink and 3/8” Counterbore Bits - You can either have the head of the screw below the surface then conceal it with matching wood plugs, or fit flush with the surface

Cutting Depth Adjustable – You may need holes for long or short screws; these counterbore Drill Bits with Adjustable Depth Stop to fit the length of your screws; just tighten the pilot drill bit with the hex key (included) to the Countersink / Counterbore sleeve

Precision Drilling Performance: Forstner Bits with sharp serrated edges that create chisel-like curls for fast chip removal provide clean and flat-bottom holes in diameters of 3/4” (20mm), 1” (25mm), 1-1/8” (28mm), 1-1/4” (32mm), 1-3/8” (35mm), 1-1/2” (38mm)

Accurate & Clean Holes: Forstner Drill Bits with fine kerf teeth improve accuracy and deliver clean, smooth results, while steep angled cutting edges create smooth and flat holes; while a 3/8” (10mm) round shank style reduces runout for more precise holes, fewer mistakes, and less frustration.

Versatile Applications: Perfect Wood Drill Bits for drilling holes on wood and plastic for furniture cabinet door hinges, and can be used for cutting materials - soft or hard wood, solid wood boards, plywood, plastics, etc.