10mm Shank Size Drill Bits

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54 Products

About Drill Bits

Compare material, finish, length class, and decimal size equivalents.

Drill Bits

Black Oxide

Titanium Nitride (TiN) Coated

Uncoated

Black and Gold Oxide

Standard

Split

These jobbers'-length bits have the rigidity and length required for most applications.

Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated drill bits.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank					Each		Pkg.
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each	Pkg. Qty.		Pkg.
Metric
Black-Oxide High-Speed Steel
10.0 mm	0.3937"	133mm	67mm	Round	10mm	Standard	DIN 338	Steel, Iron, Stainless Steel	00000000	000000	10	00000000	0000000
Black-and-Gold Oxide High-Speed Steel
10.0 mm	0.3937"	130mm	92.1mm	Round	10mm	Split	NAS907 Type B	Steel, Iron, Stainless Steel	000000000	0000	5	000000000	00000
Titanium-Nitride (TiN) Coated High-Speed Steel
10.0 mm	0.3937"	133mm	67mm	Round	10mm	Standard	DIN 338	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic	0000000	00000	__	000000	00
Uncoated High-Speed Steel
10.0 mm	0.3937"	130mm	87.3mm	Round	10mm	Standard	__	Steel, Iron, Stainless Steel, Aluminum, Bronze, Plastic	00000000	0000	__	000000	00

Short-Length Drill Bits

Black Oxide

Titanium Nitride (TiN) Coated

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.

Black-oxide drill bits produce less friction than uncoated drill bits.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide drill bits.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank					Each
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric
Black-Oxide High-Speed Steel
10.0 mm	0.3937"	89mm	22.9mm	Round	10mm	Split	DIN 1897	Steel, Iron, Stainless Steel	00000000	000000
Titanium-Nitride (TiN) Coated High-Speed Steel
10.0 mm	0.3937"	89mm	43.2mm	Round	10mm	Split	DIN 1897	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic	0000000	00000

Extended-Length Drill Bits

Black Oxide

Uncoated

Access hard-to-reach spots and drill deep holes.

Black-oxide drill bits produce less friction than uncoated drill bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On	Specifications Met		Each
Metric
Black-Oxide High-Speed Steel
10.0 mm	0.3937"	315mm	229.9mm	Round	10mm	Standard	Steel, Iron, Stainless Steel	DIN 340	00000000	0000000
Uncoated High-Speed Steel
10.0 mm	0.3937"	184mm	100.6mm	Round	10mm	Standard	Steel, Iron, Aluminum, Brass, Bronze, Plastic	DIN 340	00000000	00000

Chip-Clearing Drill Bits

Titanium-Nitride (TiN) Coated Parabolic Spiral Flute

Parabolic Flute

These jobbers'-length bits have the rigidity and length required for most applications. The flutes are designed to lift chips out of the hole, reducing clogging and improving coolant flow.

Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral-flute bits.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide drill bits.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On	Specifications Met		Each
Metric—Parabolic Spiral Flute
Titanium-Nitride (TiN) Coated High-Speed Steel
10.0 mm	0.3937"	133mm	87mm	Round	10mm	Split	Steel, Iron, Aluminum, Brass, Bronze, Plastic	DIN 338	0000000	000000
Uncoated High-Speed Steel
10.0 mm	0.3937"	133mm	67mm	Round	10mm	Split	Steel, Iron, Aluminum, Brass, Bronze, Plastic	DIN 338	0000000	00000

Cobalt Steel Drill Bits

Titanium Nitride (TiN) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Gold Oxide

These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.

Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.

Gold-oxide drill bits produce less friction than uncoated drill bits.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank					Each
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric
Titanium-Nitride (TiN) Coated Cobalt Steel
10.0 mm	0.3937"	133mm	87.1mm	Round	10mm	Split	DIN 338	Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	0000000	000000
Titanium-Aluminum-Nitride (TiAlN) Coated Cobalt Steel
10.0 mm	0.3937"	133mm	72mm	Round	10mm	Split	DIN 338	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	00000
Gold-Oxide Cobalt Steel
10.0 mm	0.3937"	133mm	67mm	Round	10mm	Split	NAS907 Type J	Steel, Hardened Steel, Iron, Stainless Steel, Nickel	000000000	00000

Short-Length Cobalt Steel Drill Bits

Uncoated

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.

Drill bits with a split point keep centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank					Each
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric
Uncoated Cobalt Steel
10.0 mm	0.3937"	89mm	23.1mm	Round	10mm	Split	DIN 1897	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel	00000000	000000

Chip-Clearing Cobalt Steel Drill Bits

Uncoated

The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. All are jobbers’ length so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	Specifications Met	For Use On		Each
Metric—Parabolic Spiral Flute
Uncoated Cobalt Steel
10.0 mm	0.3937"	133mm	87mm	Round	10mm	Split	DIN 338	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel	0000000	000000

Carbide Drill Bits

Uncoated

Titanium Nitride (TiN) Coated

These jobbers'-length bits have the rigidity and length required for most applications. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. The four-facet point keeps the bit centered without a pilot hole. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On		Each
Metric
Uncoated Carbide
10.0 mm	0.3937"	114mm	58.4mm	Round	10mm	Four Facet	Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic	0000000	000000
Titanium-Nitride (TiN) Coated Carbide
10.0 mm	0.3937"	114mm	73mm	Round	10mm	Four Facet	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	0000000	00000

Short-Length Carbide Drill Bits

Uncoated

Titanium Nitride (TiN) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers’-length drill bits. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.They have either a four-facet or split point to keep the bit centered without a pilot hole.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.

Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On		Each
Metric
Uncoated Carbide
10.0 mm	0.3937"	75mm	32mm	Round	10mm	Four Facet	Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic	00000000	000000
Titanium-Nitride (TiN) Coated Carbide
10.0 mm	0.3937"	75mm	32mm	Round	10mm	Four Facet	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	000000000	00000
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide
10.0 mm	0.3937"	75mm	32mm	Round	10mm	Four Facet	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	00000

Carbide Drill Bits with Coolant Holes

Holes in these bits allow coolant to be run through the tool for more efficient chip evacuation. Use them in CNC machines with coolant-through technology. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. A titanium aluminum nitride (TiAlN) coating gives them additional wear and temperature resistance. The four-facet point keeps the bit centered without a pilot hole. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.

Jobbers'-length drill bits have the rigidity and length required for most applications.

Maintenance-length drill bits are shorter and more rigid than jobbers'-length bits but longer than short-length bits. They hold up better than jobbers' bits when drilling in hard metal. Also known as mechanics' bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	No. of Coolant Holes	For Use On		Each
Metric—Jobbers' Length
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide
8.5 mm	0.3346"	102mm	61mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	0000000
9.0 mm	0.3543"	102mm	61mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
9.5 mm	0.374"	102mm	61mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
10.0 mm	0.3937"	102mm	61mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
Metric—Maintenance Length
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide
8.5 mm	0.3346"	89mm	47mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
9.0 mm	0.3543"	89mm	47mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
9.5 mm	0.374"	89mm	88.9mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	00000000	000000
10.0 mm	0.3937"	89mm	47mm	Round	10mm	Four Facet	2	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass	0000000	000000

Extended-Length Carbide-Tipped Drill Bits

Access hard-to-reach spots and drill deep holes. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On		Each
Metric
Uncoated Carbide-Tipped Steel
10.0 mm	0.3937"	178mm	90mm	Round	10mm	Standard	Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic	000000000	000000

Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.

Drill bits with a split point keep centered without a pilot hole.

Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.

For technical drawings and 3-D models, click on a part number.

			Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Type	Size	For Use On	Max. Drilling Dp.	Point Angle		Each
Standard Point
Metric
Uncoated Carbide-Tipped Steel
10.0 mm	0.3937"	133mm	Round	10mm	Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic	76.2mm	118°	00000000	000000
Split Point
Metric
Uncoated Carbide-Tipped Steel
10.0 mm	0.3937"	130mm	Round	10mm	Iron, Aluminum, Brass, Bronze, Plastic	95mm	135°	00000000	00000

Short-Length Carbide-Tipped Drill Bits

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than standard-length drill bits. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.

For technical drawings and 3-D models, click on a part number.

				Shank			Standard Point
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	For Use On	Point Angle		Each
Metric
Uncoated Carbide-Tipped Steel
10.0 mm	0.3937"	84mm	30mm	Round	10mm	Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic	118°	000000000	000000

Drill Bits for Precise Holes in Wood

Uncoated High-Speed Steel

Three sharp points allow these bits to drill accurate straight and overlapping holes, even across the grain. The center guide point prevents the bit from wandering. Also known as brad-point bits.

High-speed steel drill bits are stronger and more wear resistant than steel drill bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style		Each
Metric
Uncoated High-Speed Steel
10.0 mm	0.3937"	130mm	105mm	Round	10mm	Brad	00000000	000000
14.0 mm	0.5512"	140mm	110mm	Round	10mm	Brad	00000000	00000
15.0 mm	0.5906"	140mm	110mm	Round	10mm	Brad	00000000	00000

Smooth-Finish Drill Bits for Wood

Alloy Tool Steel

Bore clean, flat bottom holes in soft wood, veneer, and laminates. The center guide point prevents the bit from wandering. Also known as Forstner bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style		Each
Metric
Uncoated Alloy Tool Steel
26.0 mm	1.0236"	89mm	76.2mm	Round	10mm	Standard	000000	000000
35.0 mm	1.378"	89mm	76.2mm	Round	10mm	Standard	000000	00000

Optional Extensions
5" Extension for 5/16" Shank Size	0000000	Each	000000
10" Extension for 5/16" Shank Size	0000000	Each	00000

Carbide-Tipped Drill Bits for Hardened Steel

The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Max. Hardness		Each
Metric
Uncoated Carbide-Tipped Steel
10.0 mm	0.3937"	133mm	40mm	Round	10mm	Notched	Rockwell C60	0000000	000000

Drill Bits for Carbon Fiber, Fiberglass, and Graphite

Uncoated Brad Point

Diamond-Coated Brad Point

These jobbers'-length bits have the rigidity and length required for most applications. They are designed to make clean holes in abrasive material. Their point keeps the bit centered without a pilot hole.

Uncoated drill bits have three drill points that make clean holes in fiber-reinforced composites without fraying or delaminating the material.

Diamond-coated drill bits are highly wear resistant for drilling in abrasive material. They last longer than uncoated bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style		Each
Metric
Uncoated Carbide
10.0 mm	0.3937"	114mm	73mm	Round	10mm	Brad	00000000	0000000
Diamond-Coated Carbide
10.0 mm	0.3937"	114mm	73mm	Round	10mm	Brad	0000000	000000

Drill Bits for Plastic

The sharp point allows for gradual penetration to reduce friction and eliminate cracking and chipping when drilling in plastic. These bits are jobbers' length and have the rigidity and length required for most applications.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style		Each
Metric
Uncoated High-Speed Steel
10.0 mm	0.3937"	133mm	94mm	Round	10mm	Standard	000000000	000000

High-Speed Steel Left-Hand Drill Bits

Black Oxide

Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws. These bits are jobbers' length and have the rigidity and length required for most applications.

Black-oxide and gold-oxide drill bits produce less friction than uncoated drill bits.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On	Specifications Met		Each
Metric
Black-Oxide High-Speed Steel
10.0 mm	0.3937"	133mm	74mm	Round	10mm	Standard	Steel, Iron, Stainless Steel	DIN 338	00000000	000000

Cobalt Steel Left-Hand Drill Bits

Uncoated

With better heat and wear resistance than high-speed steel, cobalt steel bits can run up to 25% faster and have a longer tool life. Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws. These bits are maintenance length, also known as mechanics’ length. They are shorter and more rigid than jobbers’ bits but longer than short-length bits. The split point keeps the bit centered without a pilot hole.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On	Specifications Met		Each
Metric
Uncoated Cobalt Steel
10.0 mm	0.3937"	130mm	95mm	Round	10mm	Split	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel	NAS907 Type J	0000000	000000

High-Speed Steel Multidiameter Drill Bits

Titanium Nitride (TiN)

Uncoated

Steps with progressively larger diameters let you drill a range of sizes with one bit. Also known as step drills.

Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits and black-oxide drill bits.

For technical drawings and 3-D models, click on a part number.

					Shank
Drill Bit Size	Decimal Size Equivalent	No. of Sizes	Overall Lg.	For Max. Material Thick.	Type	Size	Point Style	For Use On		Each
Metric
Titanium-Nitride (TiN) Coated High-Speed Steel
4.0 mm, 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm, 22.0 mm	0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661"	10	76mm	5mm	Hex	10mm	Standard	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic	00000000	000000
Uncoated High-Speed Steel
4.0 mm, 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm, 22.0 mm	0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661"	10	76mm	5mm	Hex	10mm	Standard	Steel, Iron, Aluminum, Brass, Bronze, Plastic	00000000	00000
6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm	0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087"	7	64mm	5mm	Hex	10mm	Standard	Steel, Iron, Aluminum, Brass, Bronze, Plastic	00000000	00000

Carbide Hole-Starting Drill Bits

90° Point Angle

120° Point Angle

140° Point Angle

Harder, stronger, and more wear resistant than cobalt steel, solid-carbide bits maintain their sharp edges longer. They require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. The short flute and length keep these bits straight for accurate placement when starting holes that will be drilled deeper with a longer bit. Also known as spotting drill bits.

Bits with a 90° point angle are for centering and chamfering holes that will be followed by a smaller drill bit size.

Bits with a 120° point angle are for starting a hole that will be followed by a drill bit with a point angle from 90° to 118°.

Bits with a 140° point angle are for starting a hole that will be followed by a drill bit with a point angle from 118° to 135°.

For technical drawings and 3-D models, click on a part number.

				Shank
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On		Each
90° Point Angle
Metric
Uncoated Carbide
10 mm	0.3937"	70mm	10mm	Round	10mm	Standard	Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic	00000000	000000
120° Point Angle
Metric
Uncoated Carbide
10 mm	0.3937"	70mm	10mm	Round	10mm	Standard	Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic	00000000	00000
140° Point Angle
Metric
Uncoated Carbide
10 mm	0.3937"	70mm	10mm	Round	10mm	Standard	Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic	00000000	00000

Cobalt Steel Hole-Starting Drill Bits

90° Point Angle

The short flute and length keep these bits straight for accurate placement when starting holes that will be drilled deeper with a longer bit. Also known as spotting drill bits. Cobalt steel bits are heat resistant and maintain their sharp edges when drilling hard material. They are for use in both hand-held drilling and machine-tool applications.

Bits with a 90° point angle are for centering and chamfering holes that will be followed by a smaller drill bit size.

For technical drawings and 3-D models, click on a part number.

				Shank				90° Point Angle
Drill Bit Size	Decimal Size Equivalent	Overall Lg.	Max. Drilling Dp.	Type	Size	Point Style	For Use On		Each
Metric
Uncoated Cobalt Steel
10.0 mm	0.3937"	89mm	25.4mm	Round	10mm	Standard	Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel	00000000	000000