Anchor Drilling Status
2025/05/19

What's the best part of drilling operations?

Hello, everyone. This is Enta. We’re drilling using drill bits, right? Here’s what a brand-new one looks like. It’s a standard ring bit. We want to use this for as long as possible, but we also want to drill as quickly as possible. So we tend to apply quite a bit of pressure while drilling…

Selection
2025/05/12

Using different bits makes a huge difference in drilling speed (hand drilling)

Hello, everyone. This is Enta. What kind of bits do you use when operating a rock drill? Well, if you think about it, it’s usually either a cross bit or a carbide bit (flat), right? Cross bits are the most common. Another common type is the carbide bit. …

Grouting Worker
2025/04/15

The Real Reason It Comes Out From the Outside of the Casing After Pressure Injection!

Hello, everyone. This is Enta. Are you doing pressure grouting? Well, I’ve always said that pressure grouting isn’t all that effective, but since the topic of “Why does it come out of the mouth?” came up, I thought I’d write about it. Drill the holes as usual, and for ground anchors or…

Online Shopping
2024/08/13

Be careful—I tried using an overseas online retailer and it was a total disaster

Hello, everyone. It’s Enta here. The three-day weekend is over, and I’m sure some of you are starting your Obon break today while others aren’t, but let’s just take it easy. I think it’s actually nice that there aren’t too many calls right now, lol. Anyway, getting back to the topic at hand, the other day on AliExpress…

Steel-Cutting Bit
2024/05/23

Introducing the steel-cutting bits used in the catch basin construction project

Hello, everyone. This is Enta. Have you heard of steel-cutting bits? Well, I’ve mentioned them a few times on this blog, so I’m sure you’re familiar with them, but this time I’m talking about using a steel-cutting bit in a catch basin. What do you think? It cuts cleanly, doesn’t it? One…

Ring Bit Wear
2023/07/11

The drill bits—which were supposed to determine how fast the drilling went—turned out to be all too good!

Hello, everyone. This is Enta. A long time ago (about 10 years ago), I was working as a rebar installer on a super-hard mountain. The site had double-walled pipes (why?), and it was just impossible to dig. The mountain was so hard!! But since we couldn’t change the plan, we had no choice but to dig, so we dug…

Found Something Great
2023/03/23

Found a great product! (Single bit for hanging-style use)

Hello, everyone. This is Enta. The other day, I got a message from someone in Shikoku asking, “What do you do when you can’t dig with a suspended core drill?” Without hesitation, I replied, “Dig with water!” lol. Digging with a suspended core drill using water—it gets the area around it really messy, but it gets the job done^^ What we’re after is the rebar…

Collapse: Reinforcement Bar Installation Worker
2023/02/10

Tips for When Rebar Just Won't Go In During Rebar Installation

Hello, everyone. It’s Enta here. I turned 47 today, lol. When I was younger, I thought I’d be a total old man by the time I was 47. But it turns out that even though I look like an old guy on the outside, I’m not really that old on the inside, lol. Anyway, moving on—single-pass drilling methods like suspended drilling…

Great Stuff
2022/12/09

Bits for use when obstructing trees interfere with drilling

Hello, everyone. This is Enta. Starting next week, we’ll be drilling in a spot like this. Can you imagine what might happen if we drill in a place like this? The biggest challenge in a spot like this is the roots! It’s fine if they’re just a few thin roots, but if they’re right under the trunk, that’s trouble…