Does anyone have instructions for these? Each one has a number but I am not sure which one to use for what job

To add to what others have said, the EX is is for "extracting" (wet) silicon if u don't like your work and want to redo. Don't know what R, RK, and RS is though. Can someone mention?

What do the letters mean on the tools rs rk ex

I’m not sure sorry, I didn’t notice them I just selected the tool that looked like it would cover gap the best after watching a few YouTube videos on how to silicone properly

How do one know which tool size to use for what job. Are instructions included?. Thnx

There aren’t any instructions . You look at the gap you are dealing , judge how much silicon to apply Cut the nozzle on the end to suit what you are doing .then select the silicon finishing tool to suit that and remove as little as possible , but leave a straight consistent line of silicon Look on YouTube for examples

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XCOZU 4-Piece Portable Blue Silicone Caulking Kit - Multi-Edge Sealant Applicator Tool Smoother Mastic Tool for Kitchens, Bathrooms

XCOZU 4-Piece Portable Blue Silicone Caulking Kit - Multi-Edge Sealant Applicator Tool Smoother Mastic Tool for Kitchens, Bathrooms

Product ID: 146304322

Details

Brand
XCOZU
Item weight
0.08 Pounds
Material
Silicone
Style
Compact
Water resistance level
Water

💧water-resistant & easy to clean

🔵4-piece versatile silicone set

🛠️multi-edge design for complex angles

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Description

🔵 Seal like a pro, save time, and upgrade your space effortlessly!

TIME COST SAVER - Eliminate masking tape and reduce sealant waste with smooth, professional results every time.
DURABLE SILICONE BUILD - Crafted from flexible, non-deforming silicone that’s comfortable to grip and built to last.
EFFORTLESS MAINTENANCE - Simply wipe clean with a damp cloth for repeated use, keeping your workspace neat and efficient.
PORTABLE LIGHTWEIGHT - Compact 36g tools fit easily in your toolkit or drawer—ready for any quick home upgrade.
PRECISION MULTI EDGE DESIGN - Tackle every corner and angle with four uniquely shaped edges for flawless sealant finishes.

The XCOZU 4-Piece Portable Blue Silicone Caulking Kit features four durable, water-resistant silicone tools designed with multiple edges to perfectly smooth sealant lines in kitchens, bathrooms, floors, and windows. Lightweight and easy to clean, this kit streamlines your sealing projects by saving time, reducing waste, and eliminating the need for masking tape—making it an essential upgrade for any home improvement enthusiast.

Specifications

ASIN	B07TYLT8HD
Best Sellers Rank	50,562 in DIY & Tools ( See Top 100 in DIY & Tools ) 269 in Masonry & Tiling Tools
Brand	XCOZU
Colour	blue
Compatible Material	[A range of common building materials]
Customer Reviews	4.3 4.3 out of 5 stars (5,051)
Item Form	Gel
Item Weight	0.08 Pounds
Manufacturer	XCOZU
Manufacturer Part Number	sahg-mfjgj658h97
Material	Silicone
Number of Items	4
Style Name	Compact
Surface Recommendation	Floor, Window
UPC	791256269197
Unit Count	4 count
Water Resistance Level	Water Resistant

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