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Bosch CO2135B 1/8 in. X 2-3/4 in. Cobalt M42 Drill Bit

AMAZON.COM

bosch co2135b 18 in x 2-34 in cobalt m42 drill bit

$ 3.99

Last price was updated on: 12th Dec 2025, 11:22 AM

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Pricing Analytics & Buying Assistance

Price Score: Good

Poor Average Good Excellent

Current Price $3.99

$1.99

Lowest

$6.27

Highest

Buying Advice:
Good – Worth buying. 58% chance price goes up. Buy soon.

Price History Benchmarks

Lowest Ever

$1.99

16th Feb 2021

Highest Ever

$6.27

30th Nov 2021

Average Price

$3.53

58 data points

Last 3M Low

$3.99

5th Oct 2025

Last 6M Low

$2.99

10th Sep 2025

Last 12M Low

$2.99

10th Sep 2025

Price History Chart

Product Variants

Image of BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

Image of BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO21B 21-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of Bosch CO2141B 7/32 in. X 3-3/4 in. Cobalt M42 Drill Bit

Bosch CO2141B 7/32 in. X 3-3/4 in. Cobalt M42 Drill Bit

Image of Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Image of BOSCH CO2151B 1-Piece 3/8 in. x 5 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO2151B 1-Piece 3/8 in. x 5 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of BOSCH CO2131B 1/16 in. x 1-7/8 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2131B 1/16 in. x 1-7/8 in. Cobalt M42 Drill Bit (Pack of 2)

Image of BOSCH CO2159B 1-Piece 1/2 in. x 6 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO2159B 1-Piece 1/2 in. x 6 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of BOSCH CO2135B 1/8 in. x 2-3/4 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2135B 1/8 in. x 2-3/4 in. Cobalt M42 Drill Bit (Pack of 2)

Image of BOSCH CO2139B 3/16 in. x 3-1/2 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2139B 3/16 in. x 3-1/2 in. Cobalt M42 Drill Bit (Pack of 2)

Image of BOSCH CO2137B 5/32 in. x 3-1/8 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2137B 5/32 in. x 3-1/8 in. Cobalt M42 Drill Bit (Pack of 2)

Image of BOSCH CO2138B 11/64 in. x 3-1/4 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2138B 11/64 in. x 3-1/4 in. Cobalt M42 Drill Bit (Pack of 2)

Image of Bosch CO2134B 7/64 in. X 2-5/8 in. Cobalt M42 Drill Bit

Bosch CO2134B 7/64 in. X 2-5/8 in. Cobalt M42 Drill Bit

Image of Bosch CO2147B 5/16 in. X 4-1/2 in. Cobalt M42 Drill Bit

Bosch CO2147B 5/16 in. X 4-1/2 in. Cobalt M42 Drill Bit

Image of BOSCH CO2141B 7/32 in. x 3-3/4 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2141B 7/32 in. x 3-3/4 in. Cobalt M42 Drill Bit (Pack of 2)

Image of Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Image of BOSCH CO2151B 3/8 in. x 5 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2151B 3/8 in. x 5 in. Cobalt M42 Drill Bit (Pack of 2)

Image of BOSCH CO2155B 1-Piece 7/16 in. x 5-1/2 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum (Pack of 4)

BOSCH CO2155B 1-Piece 7/16 in. x 5-1/2 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum (Pack of 4)

Image of Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Bosch CO2131B 1/16 in. X 1-7/8 in. Cobalt M42 Drill Bit

Image of Bosch CO2155B 7/16 in. X 5-1/2 in. Cobalt M42 Drill Bit

Bosch CO2155B 7/16 in. X 5-1/2 in. Cobalt M42 Drill Bit

Image of Bosch CO2135B 1/8 in. X 2-3/4 in. Cobalt M42 Drill Bit

Bosch CO2135B 1/8 in. X 2-3/4 in. Cobalt M42 Drill Bit

Image of Bosch CO2137B 5/32 in. X 3-1/8 in. Cobalt M42 Drill Bit

Bosch CO2137B 5/32 in. X 3-1/8 in. Cobalt M42 Drill Bit

Image of Bosch CO2139B 3/16 in. X 3-1/2 in. Cobalt M42 Drill Bit

Bosch CO2139B 3/16 in. X 3-1/2 in. Cobalt M42 Drill Bit

Image of BOSCH CO2138B 1-Piece 11/64 in. x 3-1/4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO2138B 1-Piece 11/64 in. x 3-1/4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of BOSCH CO2143B 1-Piece 1/4 in. x 4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO2143B 1-Piece 1/4 in. x 4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of BOSCH CO2133B 1-Piece 3/32 in. x 2-1/4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

BOSCH CO2133B 1-Piece 3/32 in. x 2-1/4 in. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

Image of BOSCH CO2133B 3/32 in. x 2-1/4 in. Cobalt M42 Drill Bit (Pack of 2)

BOSCH CO2133B 3/32 in. x 2-1/4 in. Cobalt M42 Drill Bit (Pack of 2)

Product Technical Information

Product Code	B07Q9X37RL
Market Place	amazon.com
Market Place Name	Amazon.com
Brand Name	Bosch
Rating	4.7 ( 6726 ratings )
Category	Jobber Drill Bits
Manufacturer	BOSCH
Model Number	CO2135B
Item Color	Black
Item Size	1/8 x 2-3/4 Inch (Pack of 1)

Frequently Asked Questions

What is the lowest price ever for this product? ▶

The lowest price for Bosch CO2135B 18 in X 2-34 in Cobalt M42 Drill Bit was $1.99 on 16th Feb 2021. This is the best recorded deal so far.
What is the highest price ever for this product? ▶

The highest price for Bosch CO2135B 18 in X 2-34 in Cobalt M42 Drill Bit was $6.27 on 30th Nov 2021. Prices have dropped since then.
What is the average price of this product? ▶

The average price for Bosch CO2135B 18 in X 2-34 in Cobalt M42 Drill Bit is $3.53 (58 data points). This helps you compare current deals.
What is the lowest price in the last 3 months? ▶

In the last 3 months, Bosch CO2135B 18 in X 2-34 in Cobalt M42 Drill Bit reached a low of $3.99 on 5th Oct 2025. Recent price trends may help you decide when to buy.
Should I buy this product now? ▶

Worth buying. The price is good, but you may wait for a better deal. 58% chance price goes up. Price may increase soon.