Gripper Rating Service
Discover your grippers' true closing poundage with calibrated RGC testing right here in Australia. Matched directly to Cannon PowerWorks standards, backed by durable color-coded aluminum tags, and delivered at a fraction of international shipping costs.
Calibrated Array with RGC Tags
Artie's Calibration Standards
Every rated gripper is tested on a rigid steel calibration fixture to isolate pure spring resistance and eliminate subjective variation.
- Certified RGC Rating: Tested horizontally to parallel contact for true closing poundage.
- Anodized Aluminum Disc Tag: Permanently stamped with exact RGC poundage and looped to the spring coil.
- Broad Brand Compatibility: Captains of Crush, GHP, Heavy Grips, Robert Baraban, FBBC, Standard, and custom springs.
- CPW Parity: Calibration rig cross-referenced against Cannon PowerWorks benchmark grippers.
The Science of Calibration
Why Rate Your Grippers?
Manufacturer Tolerances Vary Wildly
Spring winding tension, wire diameter variance, and handle mounting depths mean two grippers stamped with the exact same model number (e.g. CoC #2) can differ by 10 to 15+ lbs RGC. A "hard" #2 can be harder than an "easy" #2.5! Rating eliminates the guesswork.
Bridge the Brutal Plateau Chasms
The gap between a Captains of Crush #2 (avg ~106 lbs) and a #2.5 (avg ~128 lbs) is over 20 lbs of pure crushing force. Rating your collection lets you find intermediate stepping stones (like a 115 lb GHP 6 or 121 lb Heavy Grip) to progress without stalled momentum or injury.
Genuine Standardised Progress Tracking
When you close a gripper in training, knowing its certified RGC lets you celebrate verifiable progress. You can calculate volume, peak intensity, and rate of perceived exertion (RPE) with mathematical precision just like a barbell deadlift.
Cannon PowerWorks is the gold-standard US pioneer, but return international courier shipping and currency conversion to the USA can easily exceed $100+ AUD for just a few grippers. Artie's Grip Gym provides 1:1 calibrated equivalence with local Australian postage rates and instant domestic dispatch.
Transparent Cost Calculator
Rating & Postage Estimator
Rates: $10 for 1st gripper • $5 each additional gripper in the same parcel
Include a pre-paid, self-addressed satchel inside your package. Tracked post is strongly recommended to safeguard your grippers.
Simple 5-Step Process
How to Send Your Grippers for Rating
Follow these straightforward steps to prepare, pack, and post your grippers securely.
Prep & Clean
Brush off excessive chalk and wipe down handles. If your grippers have existing markings or stickers, leave them or note them on your manifest.
Wrap Individually
Wrap each gripper in bubble wrap, cardboard, or foam. This prevents metal-on-metal rubbing and protects knurling and spring coatings during transit.
Return Satchel
Purchase a prepaid Australia Post satchel addressed to your own home. Fold it neatly and place it inside the parcel along with your grippers.
Include Manifest
Print or write down your name, mobile, email, Instagram handle, and the list of grippers enclosed. Use the booking tool below to generate your manifest!
Lodge & Track
Submit your inquiry to receive Artie's shipping address and PayID info, post your parcel at any post office, and receive your tagged grippers in days!
Generate Your Rating Manifest
Fill out your details below to automatically generate your shipping manifest. You can submit directly via email or copy the generated text to DM Artie / Grip Australia on Instagram.
You can copy the manifest above and send a message directly to @arties_gripgym or @pinch_bypinch.
Common Questions
Frequently Asked Questions
Everything you need to know about calibration mechanics, safety, and shipping.