If you are looking for a set of screw extractors that both high quality and durable, this one is it.

Features:
This set is specially designed for removing broken screws of faucet and triangular valve.
Can easily and quickly removing broken screws, bolts and studs, etc.
Made of high quality alloy steel, durable to use.
Come with a plastic case to carry screw extractors.
Straight round shank.

Specifications:
Material: Alloy Steel
Quantity: 8pcs
Extractor Type:
1#: 4.0mm; suitable for 4-6mm
2#: 4.5mm; suitable for 6-8mm
3#: 6.5mm; suitable for 8-11mm
4#: 7.5mm; suitable for 11-14mm
5#: 11.0mm; suitable for 14-18mm
6#: 15.0mm; suitable for 18-25mm
7#: 20.0mm; suitable for 25-35mm
8#: 25.00mm; suitable for 35-45mm
Package Size: 20.5 * 11.5 * 5cm / 8.07 * 4.53 * 1.97in
Package Weight: 815g / 28.74oz

Package List:
8 * Screw Extractors
1 * Plastic Case