Summary: The Weldclass PROMAX TGR40 is a portable TIG tungsten grinder that sharpens common tungsten electrode sizes to precise angles quickly and safely, without needing mains power.
The Weldclass PROMAX TGR40 Tungsten Grinder provides affordable, fast, safe, and precise TIG tungsten grinding/sharpening. It sharpens 1.0, 1.6, 2.4, 3.2 or 4.0mm tungsten electrodes to a 15°, 22.5°, or 32° angle in seconds. It is easy to use, super portable, and requires no power supply when used with a cordless rotary tool.
Available as a kit with a cordless rotary tool and case, or as a grinding head only that fits to rotary tools from most leading power tool brands.
Features
- Fast, safe, and precise TIG tungsten grinding
- Reduces down-time and improves grind quality
- Adjustable rotary tool RPM: 5,000 to 30,000 RPM
- Grinding disc size: Ø30mm
- Available as attachment tool only, or as a kit with cordless rotary tool and case
Compatibility
- Suits all common tungsten sizes: 1.0mm, 1.6mm, 2.4mm, 3.2mm, 4.0mm
- Grinding angles: 15°, 22.5°, and 32°
- Attachment fits to most rotary tool brands with a common 3/4 x 12tpi external male thread (die grinders are typically not suitable)
Compliance & Safety
- Thoriated tungsten electrodes contain low-level radioactive thorium; use appropriate PPE (gloves, mask/respirator) when handling or grinding, and follow local regulations for waste disposal
Support
Frequently Asked Questions
Product
Can I return my product?
We always aim for make sure our customers love our products, but if you do need to return an order, we’re happy to help. Just email us directly and we’ll take you through the process.
View our refund and return policy here
Can I get my product personalised?
It depends on the creator and the product. All options are outlined on the product page, so look out for customisation options there.
Shipping
Do you ship overseas?
At this time, our shipping is limited to Australia only.
How long is the lead time for this product?
Lead times vary depending on stock availability, supplier location and freight method.
Orders processed here will take 10 - 14 business days to arrive. Overseas deliveries can take anywhere from 14 - 21 days.
What shipping carriers do you use?
We use suitable freight partners based on item size, weight, urgency and destination.
View our Shipping Policy here







