how thick of material can these grommets accomodate? I'm making a replacement bimini for my boat and need to go through 3 layers vinal material

Dear Customer: The matched grommet can hold material up to 0.1” thick. HAPDEN grommet plier doesn't require pre-drilling before use. If you need to hole punch to thicker canvas, grommet kit comes a hole puncher and a white backer block. Thanks for your question.

Can I buy an additional bag of grommets that will fit this?

just look beneath the product you see and there are extra things you can buy with it and it shows more grommets for this tool

Will the tool squeeze the grommets flat enough? Just returned Brand: Ebusin because somehow it is unable to squeeze to all the way flat.

Yes it will squeeze flat, but you have to use a lot of muscle.

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HAPDEN Grommet Tool Kit, 3/8 inch Eyelet Kit with 500 pcs 10 mm Grommets

Product ID: 441413621

💪Ergonomic lever saves power on tough materials

🧲Magnetic dies for precise, one-handed operation

⚙️1 lb lightweight for easy portability

Description

🛠️ Punch Perfect Every Time — The Ultimate Portable Grommet Solution

MAGNETIC PRECISION - Securely holds eyelets and washers in place, freeing one hand for safer, faster work at heights.
COMFORT GRIP HANDLE - Anti-slip, anti-friction rubber handle ensures fatigue-free, confident handling.
EFFORTLESS POWER LEVER - Work smarter, not harder—even through double or quadruple canvas layers.
DURABLE HIGH PURITY METAL - Built to last with premium steel that withstands heavy use without wear.
COMPLETE KIT WITH 500 GROMMETS - Everything you need to repair tents, awnings, and covers—no extra trips required.

This 3/8 inch handheld grommet tool kit combines lightweight design (1 lb) with a power-saving lever and magnetic dies for precise, one-handed eyelet installation. Crafted from durable high-purity steel and featuring an ergonomic rubber handle, it’s ideal for repairing multi-layer fabrics like tents and awnings. The kit includes 500 grommets, punch, and base, making it a complete, portable solution for professional-grade repairs on the go.

Specifications

ASIN	B0972GJRSC
Are batteries included?	No
Brand	HAPDEN
Colour	Black
Customer Reviews	4.6 4.6 out of 5 stars (2,903)
Date First Available	24 July 2021
Item Dimensions LxWxH	13.5 x 2.8 x 22.8 Centimeters
Item Height	22.8 Centimeters
Item Weight	360 g
Item Width	2.8 Centimeters
Item model number	GK-01
Manufacturer	HAPDEN
Model number	GK-01
Product Dimensions	13.5 x 2.8 x 22.8 cm; 360 g

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