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4-Piece BOSCH SP515 Hex Shank Countersink Drill Bit Set (6, 8, 10, 12) EXPIRED

$13.80
$16.99
+43 Deal Score
20,375 Views
Amazon has 4-Piece BOSCH SP515 Hex Shank Countersink Drill Bit Set on sale for $13.80. Shipping is free w/ Prime or on $25+ orders.

Thanks to Deal Hunter TattyBear for sharing this deal.

About this Item:
  • Bosch hex shank countersink bits feature adjustable depths and provide precise, clean pilot holes in wood, plastic and composite material
  • Countersink and Counterbore in one step
  • For use with Allen wrench (included in set); the hex shanks fit 3/8 in. and 1/2 in. corded and cordless drills
  • Included Sizes #6, #8, #10 and #12

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Edited November 25, 2022 at 05:31 PM by
Amazon [amazon.com] has BOSCH SP515 4 Piece Hex Shank Countersink Drill Bit Set with #6, 8, 10, and #12 for $13.80
Shipping is free with Prime or on orders $25+
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Pre-drilling 2 pieces of wood before securing them with a screw so you don't split the wood. The shaft is shaped so that the screw head will be inset and flush with the wood.
I would stick with the Bosch set. They are an established brand. The cheaper, no name Amazon brands have less quality control and are likely to come dull or not sharpened well.

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Joined Aug 2011
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#3
amoolo 10-Pack Countersink Drill Bit Set with 1 Free Hex Key Wrench, 7 Pcs High Carbon Steel Countersink Drill Bits for Wood, 3 Pcs Hex Shank Wood Countersink Bits (1/2" 5/8" 3/4"), Woodworking Carpentry Reamer https://a.co/d/auNRo0T

Are these better for the price??
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#4
Quote from rajakaali :
amoolo 10-Pack Countersink Drill Bit Set with 1 Free Hex Key Wrench, 7 Pcs High Carbon Steel Countersink Drill Bits for Wood, 3 Pcs Hex Shank Wood Countersink Bits (1/2" 5/8" 3/4"), Woodworking Carpentry Reamer https://a.co/d/auNRo0T

Are these better for the price??


I would stick with the Bosch set. They are an established brand. The cheaper, no name Amazon brands have less quality control and are likely to come dull or not sharpened well.
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#5
Quote from rajakaali :
amoolo 10-Pack Countersink Drill Bit Set with 1 Free Hex Key Wrench, 7 Pcs High Carbon Steel Countersink Drill Bits for Wood, 3 Pcs Hex Shank Wood Countersink Bits (1/2" 5/8" 3/4"), Woodworking Carpentry Reamer https://a.co/d/auNRo0T

Are these better for the price??
No, they have no shaft and aren't Bosh quality
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#6
New to tools. What do these do?
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#7
There is a more expensive but significantly improved version of this.

Adjustable Countersink Drill Bit, Self-Adjusting Depth Control Without Wrench, Preventing Scratches Or Marks by Stopper Mounted Bearing, Tungsten Carbide Tipped Counterbore - 1/8"x5/16"(3x8mm) https://a.co/d/74ftzAo
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#8
Quote from ryanrealestate :
New to tools. What do these do?
Pre-drilling 2 pieces of wood before securing them with a screw so you don't split the wood. The shaft is shaped so that the screw head will be inset and flush with the wood.
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#9
Quote from Dllemm :
There is a more expensive but significantly improved version of this.

Adjustable Countersink Drill Bit, Self-Adjusting Depth Control Without Wrench, Preventing Scratches Or Marks by Stopper Mounted Bearing, Tungsten Carbide Tipped Counterbore - 1/8"x5/16"(3x8mm) https://a.co/d/74ftzAo
Buy "Shopping land" brand stuff at your own risk. Looks like Chinese junk
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#10
Quote from jigga_what :
Buy "Shopping land" brand stuff at your own risk. Looks like Chinese junk
From Amazon"
"Country of Origin ‏ : ‎ Korea, Republic of"

May not be as junkie as you think. One Amazon reviewer wrote: "I was on the fence about buying this because of the price but they kept popping up on different YouTube woodworking g channels..." But I only found 1 short video on TY https://www.youtube.com/shorts/VY1hYrIFB7U

It actually looks very useful.
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#11
Quote from Dllemm :
There is a more expensive but significantly improved version of this.

Adjustable Countersink Drill Bit, Self-Adjusting Depth Control Without Wrench, Preventing Scratches Or Marks by Stopper Mounted Bearing, Tungsten Carbide Tipped Counterbore - 1/8"x5/16"(3x8mm) https://a.co/d/74ftzAo
That only has a single size, and the reviews suggest it doesn't work well if you want a shallow hole
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#12
Quote from jigga_what :
Buy "Shopping land" brand stuff at your own risk. Looks like Chinese junk
The point is that the adjustable depth stop bearing is a modern design that is solid and repeatable. The first time you use it you will face palm on how clever it is. Especially in my case having used countersinks for decades.

With free hand it's hard to be consistent, especially in softer wood. This is a time saver if you are looking for repeatable results, especially for larger projects. If you don't like it, return it.
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Last edited by Dllemm November 29, 2022 at 02:03 AM.
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#13
Quote from AJolly :
That only has a single size, and the reviews suggest it doesn't work well if you want a shallow hole
Most wood screws are the same size, just different lengths. But that is a limitation.

It may be best for most to stick with the Bosch countersinks for infrequent use. The tool I linked to takes the guess work out if you think you'll get a lot of use out of it. An analogy would be using a torque wrench to change a car tire rather than tightening your lug nuts "snug". Both work, one gives more feedback.
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Last edited by Dllemm November 29, 2022 at 02:02 AM.
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#14
Quote from Dllemm :
Pre-drilling 2 pieces of wood before securing them with a screw so you don't split the wood. The shaft is shaped so that the screw head will be inset and flush with the wood.
The same thing can be achieved with just using a larger drill bit and only drill in enough so the screw head is flush right?
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#15
Quote from morbie :
The same thing can be achieved with just using a larger drill bit and only drill in enough so the screw head is flush right?
Definitely can do that, but the feature these bits offer is more of a convenience thing.
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