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    Anas
    Brass honeycomb vent Looks Very Nice
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    Satheesh
    MRI/RF doors are shining with handles, Thank you My friend.
Contact Person : Martin
Phone Number : +8613910301842
Whatsapp : +8613910301842

Easy Maintenance Non Magnetic Tool Kit with Anti-slip Rubber Handle and Corrosion Resistant Durability

  • Easy Maintenance Non Magnetic Tool Kit with Anti-slip Rubber Handle and Corrosion Resistant Durability
  • Easy Maintenance Non Magnetic Tool Kit with Anti-slip Rubber Handle and Corrosion Resistant Durability
Brand Name Jovi
Certification ISO
Model Number 1-cf-7
Document JVVM-NMT-Series SPE and Quo...on.pdf
Minimum Order Quantity 1set
Price $2580
Packaging Details Carton&wooden Box
Delivery Time 7-14days
Payment Terms T/T
Supply Ability 300 Set / Month
Product Details
Hardness 38-42 HRC Service Life 20,000+ Uses
Ball End Option Yes Max Torque 1.0-40.0 N*m
Handle Material Anti-slip Rubber Case Color Black
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Product Description
Why Hex Keys Are the MRI Engineer’s #1 Tool

Count the hex socket screws on an MRI scanner:

  • Magnet cover panels: 20–30 screws

  • RF coil housings: 10–15 screws

  • Gradient coil covers: 15–20 screws

  • Patient table rails: 8–12 screws

  • Accessory mounts: 5–10 screws

Total: 60–90 hex screws per scanner. Each requires a hex key. If your hex key fails (strips, breaks, or becomes magnetic), you cannot service the scanner.

Jovvi Titanium Hex Key Lineup
Type Sizes Best For Sales Message
L-style (standard) 1.5–10 mm General service “The workhorse – ball end allows 25° angled entry”
L-style (short arm) 1.5–6 mm Tight spaces “Fits inside RF coil housings where others won’t reach”
T-handle 2–6 mm High torque “Ergonomic grip – reduces hand fatigue during 50+ screw days”
Hex bits (1/4″ drive) 2–6 mm Ratchet or torque wrench “Precise torque control for cryostat fasteners”
Extra-long (200 mm shaft) 2–4 mm Deep recessed screws “Reaches screws buried 150 mm inside gradient assembly”
Micro 0.7–1.3 mm Animal MRI, small devices “Essential for 7T animal coils – no alternative exists”
The Brass Hex Key Problem

Brass hex keys are cheap ($2–5 each) but fail quickly:

Use Count Brass Hex Key Condition Consequence
0–10 uses New – works fine None
10–30 uses Corners begin rounding Slight play in screw head
30–50 uses Significant rounding Risk of stripping screw head
50+ uses Unusable – slips in every screw Engineer frustrated; stripped screw extraction required

Cost of one stripped screw: $5,000 in parts (replace RF coil), 2 hours labor, 1 hour scanner downtime → $6,500+. A $5 brass hex key just caused $6,500 in damage.

The Stainless Hex Key Problem

Stainless steel hex keys (316, 304) are harder (55 HRC) and last longer, but:

  1. Become magnetic – Cold working from repeated insertion/stress causes martensitic transformation. A “non‑magnetic” stainless hex key after 6 months may attract to a 3T magnet.

  2. Create artifacts – Even weakly magnetic tools cause image distortion.

  3. Ferromagnetic fragments – If a stainless hex key breaks (possible under high torque), fragments are ferromagnetic and can damage cryostat.

Jovvi Titanium Hex Key Advantages
Parameter Jovvi Ti Brass 316 Stainless
Hardness (HRC) 38–42 20–25 55–60 (but work hardens)
Service life (uses) 20,000+ <50 5,000+ (but becomes magnetic)
Magnetic after 1 year? No No Yes (often)
Ball end option Yes Yes (but wears fast) Yes
Cost per hex key (3 mm) $15 $3 $8
5‑year cost (replacements) $15 (one key) $3 × 20 replacements = $60 $8 × 2 replacements = $16 (plus artifact costs)

Sales close: “The $15 Jovvi titanium hex key outlasts twenty $3 brass hex keys – and never causes artifacts. Which is really cheaper?”

Torque Limits for Titanium Hex Keys
Size (mm) Recommended Max Torque (N·m) Application
1.5 1.0 Small set screws
2.0 2.0 RF coil fasteners
2.5 3.5 Magnet cover panels
3.0 6.0 General service
4.0 10.0 Gradient assembly
5.0 15.0 Patient table rails
6.0 20.0 Large mounting bolts
8.0 30.0 Cryostat external nuts
10.0 40.0 Heavy equipment anchors

Warning to customer: “Exceeding these torques with the ball end? You will strip the screw head. Use the straight end for final tightening.”

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