TECH SPECS:

MANUFACTURER - SCUBAPRO / Johnson Outdoors

MODEL SERIES - S-Tek Spinner Spool

BASE SKU SERIES - 40.202.XXX / SCU-40.202.XXX

SPOOL BODY MATERIAL - Injection-Molded Fiberglass-Reinforced Nylon

AXLE & HARDWARE - Marine-Grade Stainless Steel

LINE MATERIAL - High-Visibility Braided Nylon / Polyester Line

ATTACHMENT - Stainless Steel Double-Ended Bolt Snap

PRIMARY USES - Deploying SMBs/DSMBs, gap/jump line navigation, search operations

Static Central Spinner Discs: The central hubs remain stationary in your hand while the outer spool rotates, preventing the spool from slipping out of your grip.

Integrated "Disc Brake" Friction Control: Squeezing the center discs together increases friction against the spool body to control descent rate or line drag.

Injection-Molded Fiberglass-Reinforced Nylon Body: Lightweight yet tough construction built to withstand impact and environmental wear.

Stainless Steel Hardware Assembly: Heavy-duty stainless steel center axle and screws resist corrosion in harsh marine environments.

Optimized Clip-Off Slots: Perimeter clip holes allow easy double-ended bolt snap positioning to lock the line or stow the spool on a harness D-ring.

Includes Stainless Steel Double-Ended Bolt Snap: Ships with a corrosion-resistant double-ender for immediate gear attachment.

Customizable Color Accents: Compatible with S-Tek Spinner Spool Color Kits (sold separately) to personalize center discs.

Operational Tips & Pro Tricks

• Mastering the "Disc Brake" Technique: Hold the spool by pinching the static center discs between your thumb and index finger. When an inflated SMB pulls line upward, gradually increase pinch pressure on the discs to apply smooth braking without burning or pinching your fingers on a spinning rim.

• Locking the Line Post-Deployment: Once your SMB reaches the surface, loop the free line through one of the outer perimeter slots and secure it with the included double-ended bolt snap. This locks the spool depth and keeps the line taut while completing safety or decompression stops.

• Cold Water / Thick Glove Operation: The static center discs provide a firm grip surface even when wearing $5 ext{ mm}$ or $7 ext{ mm}$ neoprene gloves or drysuit gloves, eliminating the need to insert a gloved finger through a narrow center hole.

• Preventing Line Birdnesting: Never overfill the spool with replacement line. Leaving $1/8 ext{ inch}$ ($3 ext{ mm}$) of clearance between the outer line layer and the spool rim prevents line from slipping over the edge and tangling around the axle.

• Post-Dive Maintenance: Unroll deployed line, rinse the spool assembly in fresh water, and let both line and spool dry completely before re-winding under light tension to prevent salt build-up around the internal axle.