Length of the bits for each diameter?

"Hi there, please see the following model with diameter and length size of the bits that comes in CO14B; CO2131 - 1/16"" - 1.875"" CO2132 - 5/64"" - 2.0"" CO2133 - 3/32"" - 2.5"" CO2134 - 7/64"" - 2.625"" CO2135 - 1/8"" - 2.75"" CO2136 - 9/64"" - 2.875"" CO2137 - 5/32"" - 3.125"" CO2139B - 3/16"" - 3.5"" CO4141 - 7/32"" - 3.75"" CO2145 - 1/4"" - 4.5"" CO2147 - 5/16"" - 4.5"" CO2151 - 3/8"" - 5.0"" CO2159 1/2"" - 6.0"" For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST."

Where is the 5/64" individual bit? (The only one I need to replace, of course!)

You always have to order any single bit or bit replacement separately, unless you can convince the company otherwise.

Does Bosch make a metric set????

This COB14B Drill bit set is at a standard or imperial measurement. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

Do either of the sets come with a bit holder? If not, what size bit holder would work?

The CO14B set doesn't come with a bit holder. The bits will work with drills that caters straight shank bits and three-flat shank bits. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7AM-7PM CST.

Co14b 14 Pc Cobalt M42 Drill Bit Set

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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977 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Drill Like a Pro, Last Like a Legend

PRECISION STABILITY - Thick web-helix design ensures superior stability and fast material removal, perfect for professional-grade metalwork.
UNMATCHED DURABILITY - 8% cobalt M42 alloy delivers 10x longer life than standard bits, so you drill with confidence every time.
VERSATILE SIZE RANGE - Includes 14 essential sizes from 1/16" to 1/2", covering all your metal drilling needs with one sleek set.
OPTIMIZED GRIP CONTROL - Split point tips and three-flat shanks on larger bits provide enhanced bit retention and precise drilling accuracy.
HEAT RESISTANT PERFORMANCE - Engineered to withstand extreme temperatures, these bits keep cool under pressure for uninterrupted workflow.

The Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set features premium 8% cobalt alloy bits engineered for 10x longer life and high-heat resistance. Designed with a thick web-helix for stability and precision, this versatile set covers 14 sizes ideal for drilling stainless steel, cast iron, titanium, and other tough metals. Perfect for professionals and serious DIYers demanding durability and performance in every project.

Specifications

ASIN	B07Q9HNTBH
Best Sellers Rank	#184,807 in Home Improvement ( See Top 100 in Home Improvement ) #1,409 in Drill Bit Sets
Brand	Bosch
Brand Name	Bosch
Customer Reviews	4.6 out of 5 stars 2,669 Reviews
Cutting Angle String	135 Degrees
Finish Type	Titanium
Finish Types	Titanium
Global Trade Identification Number	00000346594591
Item Dimensions	18.3 x 14.2 x 4.6 Centimeters
Item Highlight	Metal drilling, drill bits set to drill holes in metal, M42, three-flat shank, drill bits for stainless steel
Item dimensions L x W x H	18.3 x 14.2 x 4.6 Centimeters
Manufacturer	bosch
Material	Cobalt
Material Type	Cobalt
Minimum Bore Diameter	0.06 Inches
Model Number	CO14B
Number of Flutes	3
Number of Pieces	14
Part Number	CO14B
Point Style	Split Point
Shank Type	Straight
Surface Recommendation	Metal
UPC	000346594591
Unit Count	14.0 Count

Reviews

D**R

Alles Gut

20.07.2026

S**N

Great Qaulity

Excellent much better than the basic ones

11.06.2026

L**I

forets à métaux de très bonne qualité

Impeccable - de très bonne qualité - pas besoin de forcer - à voir à l'usage mais je reste confiante

3.01.2026

A**R

Vale cada centavo.

Produtos com qualidade Bosch dispensam comentários. Essas brocas são excelentes!!! Tornaram o trabalho mais fácil, preciso e com acabamento impecável. Vale cada centavo!

16.05.2026

J**M

Perfectas para acero inox

21.08.2026

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977 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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