- Ideal for electrical, plumbing and HVAC contractors
- Sharpening the cutting edges extends bit life
- Superior cutting in iron, steel, soft metal, plastic and wood
- See More Details
Frequently Bought Together
Price:
$999
Product Overview
The self-starting point and five-fluted design on the Bosch 1/2 in. Titanium Countersink allow it to make clean, accurate cuts in even the toughest materials. It leaves smooth, burr-free edges on soft metal, steel, iron, wood and plastic with an 82-degree chamfer that creates a snug resting place for countersunk screw heads. Constructed with high-speed steel and coated with super-hard titanium, this bit has the durability to withstand high-heat conditions for lasting use.
- Perfect for de-burring holes and countersinking holes for flush or countersunk screw heads
- Titanium coating reduces heat for balanced performance and longer life
- Fluted design inhibits chatter and vibration for smooth operation
- Produces a clean, burr-free edge
Product Overview
- Ideal for electrical, plumbing and HVAC contractors
- Sharpening the cutting edges extends bit life
- Superior cutting in iron, steel, soft metal, plastic and wood
Specifications
Dimensions
Assembled Depth (in.)
.5 in
Assembled Height (in.)
5.937 in
Assembled Width (in.)
1.875 in
Bit Diameter
1/2 in
Bit Diameter
1/2 in
Bit Length (in.)
3
Shank Diameter
1/4 in
Shank Diameter
1/4 in
Details
Bit Material
Titanium
Drill Bit Type
Countersink
Drill Bit Type(s) Included
Countersink
Individual/Set
Individual
Material Application
Wood
Returnable
180-Day
Self-Feeding
No
Shank Style
Straight
Shank Style
Straight
Tools Product Type
Power Tool
Questions & Answers
6Questions10Answers
Will is countersink regular steel?
Asked by Kaewaz July 18, 20142
AnswersYes, but keep the rpm's low as it heats up the steel and bit quickly.
Is the point on this item 82 degrees or 90 degrees?
Asked by mick November 15, 20132
AnswersThe point on this is 82 degrees with five flutes.
Will it work well for deburring holes in stainless steel
Asked by Luke November 27, 20152
AnswersI would use it for deburring but, I would not use it for countersinking.
How well will this bit work on concrete board,how long would it last.
Asked by Bear January 29, 20172
AnswersI have used this on HardieBacker and re-pointed, then continued to use. Nothing holds up to concrete for any period of time without severe wear and dulling. If you want to counter sink, use Backer-on screws with a good impact driver. We now have a good impact driver and it is a breeze to flush out the Backer-on screws into the HardieBacker.
Can this drill bit be used from deburring the ends of copper tubes?
Asked by Evan December 6, 20161
AnswerThank you for your question. We would recommend a deburring tool to debur copper tubes. The countersinks are used for drilling into material, it would not be able to debur the sides of the copper pipe.
Could this drill perfect round holes on grade23 1/2"thickness titanium tubing ?
Asked by Qu December 17, 20171
AnswerThank you for your inquiry. The CST1 Counter Sink bit is used for deburring and chamfering openings to pre-drilled holes. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from M-F 7a-7p CST.
Customer Reviews
Overall Ratings
Beautiful divots in my birch hardwood......
January 9, 2021
Beautiful divots in my birch hardwood...
Great / works very smooth / fair price / happy...
December 5, 2020
Great / works very smooth / fair price / happy with my selection
September 1, 2020
Has met all expectations...
January 29, 2020
Has met all expectations
5 Star Review
October 29, 2019
Rating provided by a verified purchaser
Works like it was designed....
October 9, 2018
Works like it was designed.
By far, this countersink has outlasted all other brands hand down. I have utilized this countersi...
September 11, 2018
By far, this countersink has outlasted all other brands hand down. I have utilized this countersink to bore material that the bit should not be used for and it has outlasted any other bit I have tried. I have even re-pointed and continued to use this bit when any other bit has nothing left to sharpen or re-point.
This is a well made product. I use it to smooth off the rough shoulder created by drilling holes ...
February 6, 2018
This is a well made product. I use it to smooth off the rough shoulder created by drilling holes in metal and also to debur the inside mouth of cartridge cases after trimming. It fits in a 1/4 inch drill chuck so I can use my lightweight cordless drill. Oh yeah, you can use it like a countersink also!
5 Star Review
December 6, 2017
Rating provided by a verified purchaser
Quality material and functional design. Very happy with this purchase.
October 26, 2017
Quality material and functional design. Very happy with this purchase.
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