How many size of drill bits?

Purchased June 2022: smallest 3/32, middle 7/64, and largest 1/8. Sizes are stamped on side of each piece.

want to know what the quick change is?

Clic-change is a GIMMICK. It is present on 100% of all quarter inch hex drill bits, driver bits, literally any quarter inch hex tool for a drill or driver. Since the '90s. Shame on Bosch for this advertisement.

Are the drill bits replaceable (in case one breaks)?

Each of the three self centering drills have allen set screws on the side of each unit that allow the drill bits to be removed and replaced. I use these drill bits all the time. It is easier and more accurate to drill a centered starter hole using these bits than trying to eyeball a hole and find out that it is not centered. Fast, accurate and easy to use. And I believe that the small drill bit is used is each of the drills.

Are the drill bits tapered ?

The drill bit themselves are straight, like any 'normal' drill bit. The size 6 is 3/32; size 8 is 7/64; and size 10 is 1/8" diameter. The tip of the housing is slightly tapered to facilitate centering, such as in the hole of hinge.

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Bosch CC2430 Clic-Change 1/4 in. Self-Centering Drill Bit Assortment (3-Piece)

Bosch CC2430 Clic-Change 1/4 in. Self-Centering Drill Bit Assortment (3-Piece)

Product ID: 50599585

Details

Cutting angle string
135 Degrees
Cutting diameter
0.25 Inches
Finish type
Aluminium
Material
Alloy Steel
Shank type
Straight

⚡33% faster bit changes

🎯Self-centering precision

🔧Universal 1/4 in. hex shank

NZ$116

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Drill smarter, not harder — precision and speed in every twist!

BUILT TO LAST - Crafted from hardened alloy steel for durability across hardwood, softwood, and treated timber.
EFFORTLESS MAINTENANCE - Easily disassemble bits for cleaning and replacement, keeping performance sharp.
SEAMLESS COMPATIBILITY - Fits all 1/4 inch drills regardless of brand—your go-to bit set for any project.
RAPID ONE HANDED BIT SWAPS - Clic-Change system lets you switch bits 33% faster without re-chucking or tools.
PINPOINT ACCURACY EVERY TIME - Self-centering design eliminates bit walking for flawless hinge drilling.

The Bosch CC2430 Clic-Change 3-piece drill bit set features a self-centering design and a 1/4 inch hex shank for universal drill compatibility. Engineered from hardened alloy steel, these bits enable 33% faster, one-handed bit changes without re-chucking or tools, delivering precise, durable performance ideal for hinge installation and door projects.

Specifications

ASIN	B0000TZX1M
Best Sellers Rank	42,072 in DIY & Tools ( See Top 100 in DIY & Tools ) 306 in Drill Bit Sets
Brand	Bosch
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (6,684)
Cutting Angle String	135 Degrees
Cutting Diameter	0.25 Inches
Finish Types	Aluminium
Global Trade Identification Number	00000346315608
Included Components	#6, #8, #10 Self Centering Hinge Drill Bits
Item Type Name	CC2430 3 Pc. Self-Centering Bit Set
Item Weight	0.01 Ounces
Manufacturer	Bosch
Manufacturer Part Number	CC2430
Material	Alloy Steel
Minimum Bore Diameter	0.25 Inches
Model Number	CC2430
Number of Flutes	3
Number of Pieces	3
Point Style	Split Point
Set Name	3-Piece Set
Shank Type	Straight
Surface Recommendation	door
Tool Flute Type	Spiral
UPC	000346315608
Unit Count	3.0 count

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