There is no direct US equivalent for a 1.75 mm crochet hook. However, it will fall between the US hook sizes of B-1 and C-2.
Understanding Crochet Hook Sizes
Soft to hold: these hair highlighting needles are designed with soft gel handles which can help to reduce hand fatigue and comfortable to hold, makes
4 Pieces Hair Needles Crochet Hooks Precision Metal Needles Crochet Knitting Needles with Soft Handles, 1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 4 Colors
Addi Steel Crochet Hook with Cap/Handle, US6 1.75mm
All Crochet Hook Sizes in Charts - Designing Vashti
Clover Soft Touch Steel Crochet Hook: 1.75mm, Multi-Colour
Amour Steel Crochet Hooks feature unique smooth elongated handles which provides maximum dexterity and ensures beautiful, even stitches. The
Amour Steel Crochet Hook No. 0 (1.75mm)
Crochet Hooks and Crochet Hook Sizes: With Conversion Chart
What is the Best Crochet Hook Size for DK Yarn? - Catherine Crochets
FULL SMALL CROCHET HOOK SET - 0.5mm,0.75mm,1.0mm,1.25mm,1.5mm,1.75mm,2.0mm,2.25mm,2.5mm,2.75mm.Each crochet handle is engraved with a permanent
Set of 10 Small Size Crochet Hook Set, Ergonomic Handle Crochet Hook Needles for Arthritic Hands, Thread Crochet Steel Lace Hooks Size 0.5mm to 2.75mm
What is the Best Crochet Hook Size for DK Yarn? - Catherine Crochets
Crochet Hook Size Guide: Chart, Types & Comparisons for Beginners
Clover Soft Touch Steel Crochet Hook - Size 0 (1.75 mm)
【Crochet Hooks with Ergonomic Soft Grip】Arthritis hands don't need to worry. The crochet hook has a soft and comfortable rubber handle that does not
Crochet Hooks 43 Pcs,Drawdart 17 Sizes Ergonomic Crochet Hook Set with Case and Crochet Accessories,Extra Long Crochet Needles for Arthritic
18 Sizes 0.5-2.2mm Crochet Hooks Aluminum Small Lace Yarn Weave
All Crochet Hook Sizes in Charts - Designing Vashti