Same Hole

Same Hole

en

Choose a language
United States (English) - en
United States (español) - es

sports

Golf

PGA

LPGA

EURO

More

News

Weather

Coronavirus

Entertainment

Money

Esports

Lifestyle

Shopping

Buy a car

Health & Fitness

Food & Drink

Travel

Video

Ben Steele, Milwaukee Journal Sentinel

8/5/2022

Juror in Kristin Smart trial excused after talking to his priest. What happens now?
Trump aide was seen on security footage moving boxes at Mar-a-Lago

Continue Reading

Show full articles without "Continue Reading" button for {0} hours.

Microsoft and partners may be compensated if you purchase something through recommended links in this article.

See how Jin Young Ko, Minjee Lee, Nelly Korda–the top three women in the world all grouped together–fared on historic day at Muirfield at AIG Women's British Open

Legendary Dodgers broadcaster Vin Scully, who worked eight Masters, dies at 94

Road to the PGA Tour: Living out of his car in a Walmart parking lot and rapping on Spotify

© 2022 Microsoft

Privacy & Cookies

Terms of use

About our Ads

Help

Newsletter

MSN Worldwide

MSN Blog

About Us

Editorial Standards

I'm already a fan, don't show this again

Opens in a new window
Opens an external site
Opens an external site in a new window

Ian Stawicki wasn’t even supposed to play golf Tuesday.
But his boss at Classic Lanes texted him Monday to see if he wanted to play in the Stars and Stripes Scramble at The Golf Club at Camelot in Lomira, Wisconsin. With the bowling alley closed this week, the 40-year-old Stawicki was in.
Sami Williams, 27, was participating for the third straight year in the event that benefits local veterans. The physical therapist was one of the first to tee off on No. 13.
By the end of their rounds, the two golf-loving strangers would be tied together by bizarre strokes of fate with their first holes-in-one coming on the same day in the same event on the same hole.
Williams’ ace came on that Lucky No. 13, using a 9-iron from the women’s tees at 114 yards.
“I got up there to hit and then it’s flying and it’s like ‘Oh, that’s a really good line if it’s long enough,’ ” Williams said. “Then we were like ‘Oh, it bounced right in front of the hole.’ Then it went bounce, bounce, in. And you could see it the whole way because we were up on the elevated tee box.
“Because it was the first hole, nobody had basically started playing yet. It was a shotgun start. So everybody heard me scream and they’re like ‘Oh, that seems to be a bit more excitement than a birdie.'”
Stawicki’s group was just underway and wondered what the ruckus was about. A few hours later they came to the 13th hole. Stawicki was golfing with three women, so he was the only one to tee off from 176 yards using a 7-iron.
“I hit it and on the left side of the beginning of the green there is a hill,” Stawicki said. “And it slopes toward the hole and I hit it and I was kind of walking it off. I saw the ball roll and then I lost it and I kind of said ‘OK.’ Everyone else was like ‘Where did it go?’
“I said, ‘I don’t want to say it, but it might be in the hole.’ They were like ‘Yeah, right. Whatever.’ So we drive down to the next tier for them to tee off and my cart partner goes ‘I don’t see your ball on the green. Are you sure?’ I said, ‘I’m positive it’s on the green.’ ”
When they arrived for a closer inspection, there was a beacon of light illuminating the hole. All that was missing was a chorus of heraldic angels.
“The sun was actually shining on the ball,” Stawicki said. “So it lit up the golf ball and you could see it. And I just started going nuts.”
He soon found out the even nuttier coincidence.
“They had a fivesome on the hole over, and they said ‘Somebody else had one on that hole a couple hours ago,’ ” Stawicki said. “I’m like ‘This was the same hole?’ They were like ‘Yeah’ and I’m like ‘This is insane!’”
Not long after Stawicki’s shot, Williams finished her round at No. 12.
“The cart girl came over and goes, ‘Oh, I hate to tell you but I just gave shots to another guy who hit a hole-in-one on the same hole you did,’ Williams said. “I’m like ‘Really?’ ”
Workers at The Golf Club at Camelot estimate they average three holes-in-one per year. It’s not immediately clear if what Stawicki and Williams accomplished has happened before in the state. But it happened in Illinois in 2017, with a story on PGA.com noting that “according to the National Hole-in-One Registry, the odds of two amateur golfers getting aces on the same hole at the same golf course on the same day are about 17-million-to-1.”
For that rare feat, Stawicki and Williams split two cases of Sprecher Root Beer given to the “closest to the pin” golfer at the Stars and Stripe Scramble.
Stawicki said he plays in about a dozen outings per year, with another one in a few weeks.
“I’m more of an avid bowler,” Stawicki said. “And I’ve had multiple 300 games. My first hole-in-one, I mean, maybe kind of set yourself up for a higher level and now you want another one.”
Williams played golf at Sussex Hamilton High School and Lakeland College. She still gets on the course about once a month. That ace has stoked the competitive fires.
“I’m going to keep playing,” she said. “My dad has three, so I have more to get.”
Like us on Facebook to see similar stories
Please give an overall site rating:

Types of Holes – The Complete Guide

by
The Engineer's Bible

|

Updated:

07-Oct-2022

15 thoughts on “Types of Holes – The Complete Guide”

0
Shares

Facebook

Twitter

LinkedIn

Email

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. OK
This is a complete guide to the types of holes found in machining.
So if you want to learn the different types of holes used in engineering, you’ll love today’s guide.
A simple hole is a circle that has been cut out of an object.
If we cut the block in half, it looks like this:
The symbol used for a hole is the diameter ‘Ø’ symbol.
Simple holes are shown on engineering drawings by stating the diameter and the depth of the hole.
For example, a 20 diameter hole that goes straight through the component would be represented as “Ø20 Through”.
Holes that go all the way through the component are known as through holes .
Holes that do not go completely through the material are known as blind holes .
Holes can be shown as a section view in order to show a clearer image of the depth of the holes.
The bottom view is what we would see if we cut the top view in half along the ”A’ section line.
The shape of the bottom of the hole is determined by the tool used to create the hole.
For a drilled hole, the shape of the bottom of the hole will be determined by the drill tip angle.
If the hole is created by a process called ‘boring’ or by a tool with a zero tip angle, the bottom of the hole will be flat.
These two types of blind hole drilling are shown in the drawing below:
A counterbore is a simple hole with a wider hole above it.
The 3D model below shows a counterbore with the same counterbore next to it cut in half:
The symbol used for a counterbore is ‘⌴’.
Counterbored holes are shown on engineering drawings as follows:
The top view shows how counterbored holes are shown on drawings. The bottom view explains what the counterbore dimensions are showing.
Note for counterbored holes that the pilot hole usually goes completely through the component. That’s why there isn’t a ‘Through’ or a dimension after the pilot hole diameter, because it is assumed it goes all the way through.
A ‘pilot hole’ is a small diameter hole, usually the first hole to be drilled.
The counterbore example above was for an M20 socket-head bolt with normal clearance. You can find out what size counterbore you need by looking at a chart such as this one .
Counterbores are machined for socket-head screws. They are used for applications where the bolt or screw must sit beneath the surface.
For example, in applications where there isn’t space for a hex-head bolt to be used due to clearance issues:
A washer may also be present underneath the socket-head screw.
A spotface is a shallow counterbored hole.
The symbol for a spotface is the counterbore symbol with the letters ‘SF’ inside it:
An example of a spotface is shown below, the dimensioning is very similar to a counterbore.
Spotfaces are used for creating a smooth and flat surface.
For example, a component that has been made via casting may not have a smooth and flat surface like a machined component.
Therefore a spotface is machined, ensuring that a part to be connected to a component with a rough surface is located correctly.
A countersink is a simple hole with a conical hole above it.
The 3D model below shows a countersink with the same countersink next to it cut in half:
The symbol for a countersink is ‘⌵’.
Countersunk holes are shown on drawings as follows – the bottom section view shows what the top dimension refers to.
If the countersink was a blind hole, the ‘Through’ above would be replaced with the depth of the pilot hole.
You may be wondering what the ‘ Ø 40.32′ is. This is known as the theoretical edge and this size countersink is for an M20 countersunk bolt.
You can find out the countersunk dimension required for countersunk metric bolts here .
Countersunk holes are used for applications where a countersunk bolt or screw is required.
Like counterbore holes, countersink holes ensure the bolt or screw sit below the surface.
A counterdrilled hole is like a countersunk hole but there is a recess above it.
T he 3D model below shows a counterdrilled hole with the same counterdrilled hole next to it cut in half:
The symbol for a counterdrill is the same as a countersink (⌵) but there will be a depth stated as well.
Counterdrilled holes are shown on drawings as follows – the bottom section view shows what the top dimension refers to.
A counterdrill can also be stated as C’DRILL or CDRILL on an engineering drawing.
A tapered hole is one where the start diameter of the hole is a different to the end diameter of the hole.
Below is a 3D model of a tapered hole next to the same hole cut in half:
Tapered holes can be shown in a number of different ways on engineering drawings.
An example of a drawing showing a tapered hole is below:
The taper in the above example is 1:5. The end diameter has been left on for reference (in brackets).
To work out what the end diameter use the equation:
Tapered holes can also be shown without the taper symbol when dimensioning using an angle is more important:
Tapered holes have lots of different engineering applications.
A common example is using a tapered hole to secure cutting tools or other tool holders.
A screw clearance hole is exactly that.
It’s a simple hole that has a slightly bigger diameter than the screw thread so that the screw can pass through.
Screw clearance holes are shown as simple holes, and use the ‘ Ø ’ diameter symbol.
Screw clearance holes are shown as simple holes:
Screw clearance holes are used for components that need the screw or bolt to go through them.
An example of this is a bracket that needs to be attached to a block.
The bracket has screw clearance holes so that a bolt can pass through it.
The bolt is threaded into the block which has a tapped hole.
The compression force of tightening the bolt fixes the bracket to the block.
A tapped (or threaded) hole is a hole that has a thread.
The symbol for a tapped hole depends on the standards used. For metric holes, the diameter symbol is replaced with an ‘M’. For example a tapped hole for an M8 bolt would be ‘M8’.
For different types of threads, for example a Unified National Fine (UNF) thread, the numerical dimension is shown first then the thread type “UNF”.
Tapped holes are shown on drawings as follows:
The “2.5” is the pitch of the thread, which is the distance in millimeters between each thread.
For a UNF thread, a through 1½” 12 hole would look like this:
The ’12’ means that there are 12 threads per inch.
Tapped holes are used to hold threaded components. Examples include screws, bolts and threaded rods.
Enjoyed this post? Check out our types of welds post .
We hope you enjoyed our new types of holes guide.
Now we’d like to hear what you have to say:
Which type of hole did you learn today?
Or which type of hole do you use most often?
Let us know by leaving a comment below right now.
Thanks for this info. Been a while.
If I have a tapped hole and counter bore feature on the periphery of a round face, would the tapped hole depth still start from the imaginary arc, or from the bottom of the counter bore? I can’t find any specific drafting standard that shows this but looking at the spot face example, it would seem that the tapped hole depth would be understood to start from the circular face, and not the first flat face at the bottom of the counter bore?
Usually the smaller diameter (pilot) hole is the first dimension given for a counterbored hole, and this is the same for a hole with a spotface (i.e. the M20 hole dimension comes before the 50 mm diameter spotface dimension above).
A good way to imagine this is as if you are machining the tapped hole first and then the spotface (so the tapped hole starts at the imaginary arc in your example).
To stop any potential ambiguity in the engineering drawing of your imaginary arc example, a section view with individual dimensions for the depth could be used instead.
Is it a through hole through which cables go?
It depends on if the cables go through the whole component or not. If using electrical conduit then this pipe could be seen as a through hole for the cable.
If the cable does not go all the way through the component, such as the hole for a hotend sensor in a 3D printer heater block, then this would be a blind hole.
Thanks a lot for Detailed explain along with 3D
You’re welcome Nagma, glad you enjoyed the 3D CAD models!
what does C’Drill (Only K ) mean? please help.
Hi Tuong, C’Drill is referencing a counterdrilled hole and this article has now been updated to explain counterdrilled holes.
It’s hard to say what the ‘Only K’ is refering to without seeing the drawing. Perhaps it’s just the one instance to be counterdrilled?
Hello po ,what other term for counterdrill holes?
Hi Mello, another term for a counterdrill hole could be “C’Drill” or “CDRILL” on an engineering drawing.
We have added another 3D model to explain counterdrilled holes in more detail.
Your email address will not be published. Required fields are marked *

Newsletter Sign-up

Golf Digest Schools Live

Golf Digest Handicap

Digital Edition

Tee Times

Contact

Privacy & Cookies Notice

Visitor Agreement

California Don't Sell My Info

Two albatrosses on the same hole?! A pair of college teammates accomplish the unthinkable

By

Alex Myers

captions settings , opens captions settings dialog captions off , selected English Captions
Error Code: MEDIA_ERR_SRC_NOT_SUPPORTED
No compatible source was found for this media.
Session ID: 2022-10-14:cabc85593c73b17e442fe223 Player Element ID: video-6290963058001
Text Color White Black Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Background Color Black White Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Transparent Window Color Black White Red Green Blue Yellow Magenta Cyan Transparency Transparent Semi-Transparent Opaque
Font Size 50% 75% 100% 125% 150% 175% 200% 300% 400% Text Edge Style None Raised Depressed Uniform Dropshadow Font Family Proportional Sans-Serif Monospace Sans-Serif Proportional Serif Monospace Serif Casual Script Small Caps
Reset restore all settings to the default values Done

Sections

News & Tours

Play

Instruction

Equipment

Courses

The Loop

Support

Hard Dp Porn Video
Ball Gagging
Grandma Jolanka Porn

Same Hole

Report Page