To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

CORE DRILL Model 4Z1 2-SPEED CONCRETE CORING DRILL by BLUEROCK TOOLS

4.4 4.4 out of 5 stars 248 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Power Core Drills by BLUEROCK

To see product details, add this item to your cart. You can always remove it later.

Purchase options and add-ons

Brand BLUEROCK
Power Source Corded Electric
Maximum Rotational Speed 2100 RPM
Voltage 110 Volts
Amperage 13 Amps

About this item

  • BLUEROCK Model 4Z1 Handheld Core Drill for Concrete, Asphalt, Cement, Rebar reinforcement, Brick and Stone
  • 110V Motor & Dual Speed: 2100rpm/950rpm
  • Portable Handheld Unit (Can be used in optional stand, not included)
  • New improved water hose assembly with metal fittings and hardware for "wet" drilling
  • Removable shoulder rest stock, locking trigger on/off switch, carrying case, extra brushes, operation manual included
  • Integrated Vertical and Horizontal drilling fluid bubble levels for precise drilling
  • Industry Standard 1-1/4" Threaded spindle end fits Bluerock brand wet type diamond core bits
  • DRILL BIT PICTURED IS NOT INCLUDED

Frequently bought together

$349.00
Get it Apr 2 - 5
In Stock
Ships from and sold by BLUEROCK Tools.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 19.5 x 15.3 x 6 inches; 21.85 Pounds
  • Item model number ‏ : ‎ 1127W737984
  • Date First Available ‏ : ‎ July 8, 2014
  • Manufacturer ‏ : ‎ BLUEROCK TOOLS
  • ASIN ‏ : ‎ B001024SNC
  • Customer Reviews:
    4.4 4.4 out of 5 stars 248 ratings

Product Description

BLUEROCK Tools Model 4Z1 2-Speed Concrete CORING Drill

"AMAZON's Best Sellers Rank: #1 in Power Core Drills."

Model 4Z1 is the highest selling, number 1 ranked concrete core drill on Amazon for a good reason!

Specifications:

  • Max Drilling Diameter: 4"
  • Rated Voltage: 110V
  • Rated Frequency: 50-60Hz
  • Rated Input Power: 1500W
  • Dual Speed: 2100rpm/950rpm
  • Arbor size is 1 1/4" 7UNC (Industry standard, most common coring bit mounting type)
  • See our BLUEROCK brand core bits
  • Contact BLUEROCK directly with any questions
  • For concrete, asphalt and masonry drilling

1

Structure and Features:

  • Two-gear rotary speed is designed for drilling different size holes. The drill is fitted with a safety slip clutch
    • #2 gear (2100rpm) is for smaller drill bits 1"-2"
    • #1 gear (950rpm) is for larger drill bits 2"-4"

2

  • This unit is designed to be an easy portable type drill for easy hand drilling
  • New improved water hose assembly with metal fittings and hardware for "wet" drilling
  • Collar size is 2 23/64"
  • Drill color is red
  • Bubble level on end of the drill for precision drilling
  • Removable shoulder rest attachment
  • Automatic hold down switch for comfort

4

5

6

Comes with a durable carrying case

Arbor size is industry standard 1-1/4" 7UNC

New improved water hose assembly with metal fittings and hardware for "wet" drilling

3

NEW BLUEROCK Tools Model 4Z1 DUAL SPEED CORE DRILL

DRILL BIT PICTURED IS NOT INCLUDED (See our separate listings for Bluerock brand core bits and our popular 1"-4" Wet Bit Set)

4"Z1 4"z11-4 z1w/s z1ws 8"z1
4Z1 Handheld Core Drill 4Z1 Handheld + 1"-4" Bit Set Package Deal 4Z1W/S Drill with Stand (No Bits) 4Z1W/S Drill with Stand + 1"-4" Bit Set Package Deal 8Z1 Core Drill with Stand (No Bits)
Customer Reviews
4.4 out of 5 stars
248
4.4 out of 5 stars
61
4.1 out of 5 stars
42
4.7 out of 5 stars
8
4.0 out of 5 stars
69
With Stand Handheld Only (See Optional Stand) Handheld Only (See Optional Stand)
With Bits None 1", 2", 3", 4" Bit Set None 1", 2", 3", 4" Bit Set No
Maximum Drilling Diameter Capacity 4" 4" 4" 4" 8"

What's in the box

  • case
  • Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    248 global ratings

    Customers say

    Customers like the performance, value, and quality of the drill. For example, they mention it works great, the clutch does work, and it's an excellent value. That said, some complain about the leakage. Opinions are mixed on the speed.

    AI-generated from the text of customer reviews

    31 customers mention26 positive5 negative

    Customers like the performance of the drill. They mention that it works great, the clutch does work, and the water system works great.

    "...It seems to be built well and the water system works great. I got a 12 volt sprayer pump to feed water and it works perfectly" Read more

    "...we were to receive a smooth, quiet, and powerful machine that performed really well...." Read more

    "I've cored about 10 holes with it so far and it works well. It's rated for up to 4" holes but I've done 5 holes at 4-1/2" with it and no issues...." Read more

    "...Works great. Best price on a decent wet core drill I could find. Has plenty of power. I've been using 4.5" and smaller bits so far...." Read more

    24 customers mention24 positive0 negative

    Customers appreciate the value of the drill. They say it is an excellent value.

    "It’s a great drill for the money. It seems to be built well and the water system works great...." Read more

    "...It's a miracle it didn't break my wrist. This drill is so worth the extra money...." Read more

    "...Works great. Best price on a decent wet core drill I could find. Has plenty of power. I've been using 4.5" and smaller bits so far...." Read more

    "...This is by far the best VALUE...." Read more

    15 customers mention15 positive0 negative

    Customers are pleased with the quality of the drill. They say it is an exceptional machine and is reasonably well made. Some customers also mention that it is very effective for drilling through block walls.

    "It’s a great drill for the money. It seems to be built well and the water system works great...." Read more

    "...This coring drill is such an exceptional machine that I had to take a few minutes to share a few thoughts...." Read more

    "...No idea as to longevity, it seems to be reasonably well made and I did not notice any problems with overheating during my use...." Read more

    "...I'm very pleased, so far, by the quality of this drill...." Read more

    3 customers mention3 positive0 negative

    Customers find the drill easy to use and say it cuts installation times.

    "...For an inexpensive drill, this packed a lot of power. Easy to use and did what I expected it to...." Read more

    "...I was absolutely shocked at how well this drill worked and how easy it was to use. I hand drilled 4 holes 2 vertical and 2 horizontal...." Read more

    "Easy to use - cut our installation times for our new uneven bar area down drastically...." Read more

    10 customers mention5 positive5 negative

    Customers are mixed about the speed of the drill. Some mention it has great performance, runs core bits like a dream, and drills fast. However, others say that the core drill low speed setting is too fast to use for starting saws, and the speed lever is difficult to operate.

    "...How pleasantly surprised we were to receive a smooth, quiet, and powerful machine that performed really well...." Read more

    "...The core drill low speed setting a too fast to use for starting saw as it would walk...." Read more

    "...Drills fast and smooth as butter...." Read more

    "...plus it has a slower speed for larger bits. I bought this after drilling about 10 holes in 22" thick PA farmhouse walls with the SDT drill...." Read more

    4 customers mention0 positive4 negative

    Customers are dissatisfied with the leakage of the drill. They mention it has a poor design and leaks everywhere.

    "...WILL NOT TIGHTEN UP HOSE IS TO BIG FOR THE FITTINGS. SO EVERY CLAMPING POINT LEAKED. I will buy the correct hose and all will be good...." Read more

    "...Upon connecting the water hose the water was leaking profusely so I changed the water hose connection and installed a stronger and longer hose...." Read more

    "...It was a poor design and leaked everywhere.....I rebuilt it with parts from home cheapo....." Read more

    "...I cannot give this enough praise.There was a small ail leak at the upper body housing after about 200 holes...." Read more

    Works for 4" holes in cured cement handheld
    4 Stars
    Works for 4" holes in cured cement handheld
    So far we've drilled about a dozen holes with this drill. Nothing to complain about given the price. Although not recommended we've had no problems using this without a stand to drill 4" holes... however we do create a "starter hole" with a different bit on our hammer drill. I wasn't able to start the hole with the bit alone, it just skated away. The bubble level on top is extremely useful to keep it straight and level, we're coring cement decks for swimming pool rails and setting these level and plumb is very important. When using it handheld there's a tendency to lean forward and the bubble level keeps you on track if you watch it. We also bought the bluerock coring bit, that we haven't had as much luck with, it's already broken a tooth.
    Thank you for your feedback
    Sorry, there was an error
    Sorry we couldn't load the review

    Top reviews from the United States

    Reviewed in the United States on December 10, 2023
    One person found this helpful
    Report
    Reviewed in the United States on September 8, 2017
    6 people found this helpful
    Report
    Reviewed in the United States on March 21, 2023
    One person found this helpful
    Report
    Reviewed in the United States on November 19, 2022
    2 people found this helpful
    Report
    Reviewed in the United States on September 19, 2015
    4 people found this helpful
    Report
    Reviewed in the United States on August 11, 2016
    8 people found this helpful
    Report

    Top reviews from other countries

    ProSafe Canada Inc.
    5.0 out of 5 stars Best value *****
    Reviewed in Canada on June 19, 2017
    One person found this helpful
    Report