Part of Amazon's Deal of the day. Not a bad first set, especially if you recently bought any of the drills/kits that were on sale at Bunnings.
Metal drill bits with titanium nitride coating
Titanium-nitride coating excel through their long service life and high strength
For fast, clean drilling in the most diverse metals, plexiglass and hard plastics
Up to 40 percent faster drilling progress than with comparable drill bits
Carbide tip suitable for hammer drilling in masonry, limestone, natural stone and cast stone
Free delivery with Prime or $39+ Spend. Deal of the day, ends at midnight or when sold out.
Dupe: https://www.ozbargain.com.au/node/543182