What about the product?

These are good general purpose drills and are advertised as being for hard metal. That is generally true although I have broken some while trying to drill out a lock on a door that was sabotaged by a tenant on a rental property. Most of the time they will drill through hard metal although using a lubricant will help extend their life

I have a very dense hard brick and i've used milwaukee titanium bits that all break. should i use the cobalt or is there something better?

You would use a masonry bit for drilling brick.

What are the sizes of the bits? It's hard to see the ones behind, on the picture.

The bit sizes are as follows (all units are in inches): 1/2; 31/64; 15/32; 29/64; 7/16; 27/64; 13/32; 25/64; 3/8; 23/64; 11/32; 21/64; 5/16; 19/64; 9/32; 17/64; 1/4; 15/64; 7/32; 13/64; 3/16; 11/64; 5/32; 9/64; 1/8; 7/64; 3/32; 5/64; 1/16.

ASIN	B073R8T8QH
Are batteries included?	No
Brand	Milwaukee
Colour	Red
Country of Origin	USA
Customer Reviews	4.8 4.8 out of 5 stars (132)
Cutting Angle String	135 Degrees
Date First Available	8 November 2017
Finish Type	cobalt
Generic Name	29PC Cobalt Red Helix Drill Bit Set
Global Trade Identification Number	00045242188475
Included Components	Drill Bits & Accessories, Masonry Drill Bit Set, Power Tool Accessories
Item Dimensions LxWxH	25.4 x 25.4 x 7.6 Centimeters
Item Height	3 Inches
Item Weight	1 kg 360 g
Item Width	10 Inches
Item dimensions L x W x H	25.4 x 25.4 x 7.6 Centimeters
Item model number	48-89-2332
Manufacturer	Milwaukee Electric Tools
Material	Cobalt
Model number	48-89-2332
Net Quantity	1.0 Count
Number of Flutes	1
Number of Memory Sticks	29
Number of Pieces	29
Point Style	brad point,center point
Product Dimensions	25.4 x 25.4 x 7.62 cm; 1.36 kg
Set Name	29Pc Cobalt Helix Drill Bit Set
Shank Type	3-Flat
Surface Recommendation	Metal, Wood
Tool Flute Type	Straight
UPC	045242188475

Electric Tools 48-89-2332 29Pc Cobalt Helix Drill Bit Set, Red

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