Best Irwin Tools Forstner Drill Bits in 2026

Easily drill perfect circles into your workpiece

Includes 1/4-inch (2), 3/8-inch, 1/2-inch, 5/8-inch, 3/4-inch, 7/8-inch, 1-inch, 1-1/8-inch, 1-1/4-inch, 1-3/8-inch, 1-1/2-inch, 1-5/8-inch, and 2-inch diameter drill bits

3/8-inch round shank compatible with the majority of drill and drill press chucks

【Areas of Application】1-1/2" Forstner bit is ideal for drilling in soft or hard wood, veneered wood and non-laminated chipboard

【Clean, Smooth Holes】The tooth-shaped design of this high-speed steel forstner bit ensures less friction and heat.It is superiority in removal chip better.Cut the clean, smooth holes

【Easy to Start】The design of the center point of the forstner drills allows precise positioning without slipping,which makes drilling more easy

DURABLE MATERIAL: Forstner bit is made of carbon steel, with the advantage of sharp edge, accurate positioning, high precision and stable cutting.

WIDELY APPLICATION: It is suitable for industrial hinge installation, wood processing and maintenance, model production, installation of spherical door, drawers and other occasions. It can easily cut wood, plastic, resin, PVC and other materials

ALL SIZE YOU NEED: 16 PCS includes 1/4" (6.3mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.8mm), 3/4" (19.0mm), 7/8" (22.2mm), 1" (25.4mm), 1-1/8" (28.5mm), 1-1/4" (31.7mm), 1-3/8" (34.9mm) ，1-1/2（38.1mm), 1-5/8(41.28mm), 1-3/4(44.45mm), 1-7/8(47.63mm), 2(50.8mm) and 2-1/8(53.98mm) forstner bits

Forstner bit made of High speed steel, has a 1" cutting diameter and round shank, compatible with all standard drill and drill press chucks.

Excellent for drilling in softwood or solidwood, plywood,coated chip board, laminates as well as mdf plates

The tooth-shaped design for fast and flawless cutting, ensures less friction and heat, which enable optimized chip removal, longer service life.

Forstner Drill Bit: Drilling diameter: 20mm / 0.79"; shank size: 7mm / 0.28"; drilling depth: 48mm / 1.89"; total length: 79mm / 3.11". Thickened carbide cutter and solid hardened steel body, round shank forstner bits for woodworking.

Applications: Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc.. Forstner drill bit is for ordinary purpose

Features: Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation

【Areas of Application】20mm Forstner bit is ideal for drilling in soft or hard wood, veneered wood and non-laminated chipboard

【Clean, Smooth Holes】The tooth-shaped design of this high-speed steel forstner bit ensures less friction and heat.It is superiority in removal chip better.Cut the clean, smooth holes

【Easy to Start】The design of the center point of the forstner drills allows precise positioning without slipping,which makes drilling more easy

【High Quality】The Hinge Drill Bit is Made of Cemented Carbide That Makes the Cutting Sharper, Lasting Durability, Unimpeded Chip Removal, and Has Excellent Boring Ability and Excellent Boring Performance. The Hinge Drill Bits Includes: 15mm(19/32"), 20mm(25/32"), 25mm(1"), 30mm(1-3/16"), 35mm(1-3/8")

【Double-edged Design】It's Head Adopt Arc Curve Double-edged Design, Rapid Removal of Waste and That Make Sure Your Work with Efficiency. The Center Spur of Each Bit Guarantees Accurate Drilling and Prevents Walking and Wobbling During Operation, Create Perfectly Round and Accurate Holes with The Center Spur Design.

【DEPTH STOPER DESIGN】 A Depth Stop can be Fixed on the Shank Which Keeps You From Drilling too Deep, Limited Depth From 15mm to 40mm. You can also Remove the Stop for Unlimited Depth.

Material - Made from tungsten steel and being hot-treated, the blade is characterized by high accuracy, smooth cutting operation, good resistance to shock and good toughness.

High speed steel shank, sturdy - Suit for drill press, pistol drill, bench drill, vertical drilling machine, hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine etc.

Forstner Drill Bit Package include 6PCS, 30mm/35mm/40mm/45mm/50mm/60mm, can meet your different needs.

Drilling with forstner bits to achieve a flat bottom hole or to start a deep hole turning project like a large vase or vessel can be very challenging with a standard length forstner bit. Worse yet, even with a standard length extension you’ll probably only add about 3” of depth to your bit. This is often not enough of a depth for many of your projects and it can get quite frustrating without the proper tools.

With the 10” long forstner bit extension you can now add over 8” of extra drilling depth to your current forstner bits! That alone makes this extension especially ideal for woodturners when having to hollow out large vessels or objects like salt and pepper shakers. The extension also works great for rustic furniture, joining wide timbers, wooden beverage mugs and even works great on things like turned kaleidoscopes.

Can be used with hand drill as well. The 10” Forstner Bit Extensions are made from heavy duty solid machined steel and feature a 3/16” thick socket wall to firmly hold the bits in place. The bits are secured with two hex socket set screws using a hex key wrench which is included. The extensions will work with hex shank or round shank forstner bits.

【 SUPER SHARP】: Just like a hot knife thru warm butter, and that is drilling into sycamore,so smooth, so fast. BASYNOL Forstner bits set,best choice, it's a tool to get pleasured work!.

【 EASY TO START】: Ultra Sharp Spur to ensure an accurate starting hole without slipping.

【 PRECISE, CLEAN,SMOOTH AND FLAT HOLE】: It cuts cleanly and accurately with no wobbling or burning the wood.Produces smooth and flat hole, and create “chisel-like" curls for fast, clean chip removal.

【High Quality Material】:The forstner drill bitsare made from tungsten steel and being hot-treated,sharp edge, high hardness, accurate positioning,high precision,smooth cutting,impact resistance,high toughness.more smooth,less noise.

【Various Sizes】: 14mm(0.55''), 15mm(19/32"), 16mm(5/8"), 17mm(43/64"), 18mm(45/64"), 19mm(3/4"), 20mm(25/32"), 21mm(53/64"), 22mm(55/64"), 23mm(29/32"), 24mm(15/16"), 25mm(1"), 26mm(1-1/16"), 28mm(1-1/8"), 30mm(1-3/16"), 32mm(1-1/4"), 35mm(1-3/8"), 38mm(1-1/2"),40mm(1-3/5"), 50mm(1.96'') which can meet your various needs in this professional set.

【Great performance】Sharp edge, accurate positioning, high hardness, impact resistance, high precision, smooth cutting, high toughness. Forstner Drill Bits can drill clean flat bottom holes with no chipping.

Easily drill perfect circles into your workpiece

Includes 1/4-inch, 3/8-inch, 1/2-inch, 5/8-inch, 3/4-inch, 7/8-inch, 1-inch, and 1-3/8-inch diameter drill bits

3/8-inch round shank compatible with the majority of drill and drill press chucks

This product is easy to use.

This product is highly durable

This product is manufactured in China

High Quality: Forstner Drill Bit made of Tungsten carbide with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Cutting Diameter: 1-1/2 Inch / 38mm, Total Length: 3.15 Inch / 80mm, Round Shank Diameter: 0.35 Inch / 9mm.

Design: Small incision resistance, improve the opening speed. It's head adopt arc curve design, beneficial to chip removal, perforation is more efficient.

Clean & Accurate Cutting: Two spurs and centering point can offer repeated, clean and accurate cutting holes. The sharp center spur accurately locates the center of your hole.

【15-Piece Forstner Bit Set】: jxgzyy wood drilling forstner bits from 2/5 to 2 Inch include 10mm(2/5''), 12mm(1/2"), 15mm(19/32"), 16mm(5/8"), 18mm(45/64"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 26mm(1-1/16"), 28mm(1-1/8"), 30mm(1-3/16"), 35mm(1-3/8"), 40mm(1-3/5"), 45mm(1-3/4"), 50mm(2"). Come with a wooden storage case, easy to organize the bits and protect them when not in use.

【Durable Material】: Forstner bits set is made of high-quality steel, with the advantage of sharp edge, accurate positioning, high precision and stable cutting.

【Sharp Design】: Our drill has the features of sharp edge, accurate positioning, high hardness, impact resistance, high precision, smooth cutting and high toughness. Fostner bit can produce holes that are smooth and flat, and create "chisel-like" curls for fast, clean chip removal.

3-1/2" overall length, 1-1/8" diameter, .375" round shank

Bores precision holes at any angle

Extra sharp cutting edges drill smooth, flat-bottomed holes

This product is easy to use.

This product is highly durable

This product is manufactured in China

This round shank Forstner bit extension will extend the reach of any Forstner bit 3/4 inch and larger with a 3/8” hex or round shank. Note: will fit auger bits.

Overall length 6-3/4 inches and adds up to 5-5/8 inches of drilling depth

Hole opening is .375 inches and hole depth 1-3/8 inches

Eco Pro Forstner Bit - Round Shank

7/16-inch Diameter, 5/16-inch Shank

3-1/2-inch Overall Length

【Top Quality】This Forstner bit made from high quality Tungsten Carbide Tipped Cutters, solid hardened steel body, ensuring its high hardness, rust proof, sharp and durable；

【Product Size】Drilling diameter：2-3/8Inch(60mm), Round Shank Dia.: 2/5Inch(10mm) , Drilling depth: 2-3/8Inch(60mm), Total length: 3-11/16Inch (93mm).

【High Effieiect & Smooth Holes】This TCT (Tungsten Carbide Tipped Cutters)Forstner bit set perfect for drilling hard wood, can easily drill precise Smooth holes in Hard Wood or soft wood.(drilling depth up to 2-3/8Inch)

This product is easy to use.

This product is highly durable

This product is manufactured in China

3-1/2¿ overall length, 2-1/8¿ diameter, .375¿ round shank

Bores precision holes at any angle

Extra sharp cutting edges drill smooth, flat-bottomed holes

Great Performance: Just like a hot knife thru warm butter, and that is drilling into sycamore,so smooth, so fast. Easily drills high-quality flat-bottomed and pocket holes.

Features: It cuts cleanly and accurately with no wobbling or burning the wood. Produces smooth and flat hole, and fast clean chip removal.

Application: Perfect for Drilling flat bottom and pocket holes efficiently. Perfect for fine woodworking, cabinet-making, and any DIY project. The shank is suitable for hand drill, power drill and drill press.

Box contents: 8 pieces. "Wave Cutter" cassette with diameters 15-20-25-30-35-40 mm, including extension with a length of 230 mm, and a reduction sleeve from 10 to 8 mm.

Forged design with centre point, peripheral cutting with patented serrated edge, 2 cutting edges and shaft with 3 surfaces in premium quality.

For drilling tear-free, dimensionally stable blind holes, for edge holes as well as for angled holes in softwood and hardwoods.

Specifications: Drilling dia.: 35mm and 40mm; shank size: 8mm and 9mm; total length: 80mm. Round shank, cemented carbide cutter and solid hardened steel body.

Applications: Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc..

Features: Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation.

Specifications: Drilling dia.: 20mm and 25mm; shank size: 7mm and 8mm; total length: 80mm. Round shank, cemented carbide cutter and solid hardened steel body.

Applications: Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc..

Features: Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation.