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.

Bosch Co14b 14 Pc Cobalt M42 Drill Bit Set

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Description

🔧 Drill Like a Pro, Last Like a Legend!

PRECISION STABILITY - Thick web-helix design minimizes bit wobble for smooth, accurate drilling in stainless steel and titanium.
UNMATCHED DURABILITY - Engineered with 8% cobalt M42 alloy delivering 10x longer life than standard bits.
VERSATILE SIZE RANGE - Includes 14 jobber-length bits from 1/16" to 1/2", covering all your professional metalworking needs.
ENHANCED GRIP CONTROL - Split point tips and three-flat shanks on larger bits provide superior bit retention and reduced walking.
HEAT RESISTANT PERFORMANCE - Withstands extreme temperatures, ensuring consistent precision in high-heat metal drilling.

The Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set features premium 8% cobalt alloy bits designed for extreme durability and heat resistance. With a thick web-helix design and split point tips, these bits deliver superior stability and precision when drilling tough metals like stainless steel, titanium, and cast iron. This versatile set includes 14 sizes, making it the go-to choice for professionals demanding long-lasting, high-performance drill bits.

Specifications

ASIN	B07Q9HNTBH
ASIN	B07Q9HNTBH
Best Sellers Rank	#8,725 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Jobber Drill Bits
Brand Name	BOSCH
Customer Reviews	4.6 4.6 out of 5 stars (6,702)
Customer reviews	4.6 4.6 out of 5 stars (6,702)
Cutting Angle String	135 Degrees
Cutting Diameter	6.35 Millimeters
Date First Available	18 June 2019
Finish Types	Titanium
Global Trade Identification Number	00000346594591
Included Components	14 Drill Bits; Case
Item Dimensions	18.3 x 14.2 x 4.6 centimeters
Item Type Name	Bosch CO14B 14 pc. Cobalt M42 Drill Bit Set
Item Weight	1 Pounds
Item model number	CO14B
Manufacturer	BOSCH
Manufacturer	BOSCH
Material Type	Stainless Steel Cobalt
Minimum Bore Diameter	0.06 Inches
Model	CO14B
Number of Flutes	3
Number of Pieces	14
Part Number	CO14B
Point Style	Split Point
Product Dimensions	18.29 x 14.22 x 4.57 cm; 453.59 g
Set Name	14-Piece Assorted Set
Shank Type	3-Flat
Surface Recommendation	Metal
Tool Flute Type	Spiral
UPC	000346594591
Unit Count	1 Count
Warranty Description	Product Defects Only

Reviews

C**O

El funcionamiento de esta broca es muy bueno, se pueden hacer fácilmente perforaciones al metal

14.12.2021

W**S

Quality material.

31.01.2026

M**H

Was soll Ma da sagen Bosch expert halt Qualität einfach fantastisch 🤩

17.01.2026

J**S

Buen producto especial para taladrar acero inoxidable

25.07.2023

T**S

I’m a hobbyist using these drill bits for steel, copper, and general household fixes and I’ve found them to be extremely durable and reliable. I’ve had no issues so far. The edges have held up well and consistently produce clean, precise holes. They’re well worth the investment in my opinion. The seller also provided excellent customer service. They stayed on top of the delivery and even sent a replacement when the package didn’t arrive by the designated time, without me having to reach out at all. Overall, a great product from Bosch and an excellent seller! Definitely would buy more if needed in the future

1.03.2026

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HK$550

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

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TrustScore 4.5 | 7,300+ reviews

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