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Mining, Tunneling and Deformation Accessories Walleye Prism System

#6603-00 — Complete System with #6411-03-BLK Prism and 5/8 x 11 Adapter #6603-01 — Complete System with #6411-03-BLK Prism and M8 Adapter #6603-00-050 — L-Bracket Assembly Only #6603-00-050-TMB — Rain Hood Only #6603-00-051 — 5/8 x 11 Adapter with Screw and Washer #6603-01-051 — M8 Adapter with Screw and Washer

This system accommodates a full size 62 mm prism for long range applications or when a larger prism is needed. The rain hood helps keep the prism clean to ensure continual measurements over a long measuring cycle. Components available individually so you can configure your specific needs. The flat bottom of the L-Bracket is a large 2.3 x 3.4 inches with five holes for mounting to a variety of surfaces. Center pivot hole is 3/8-inch (9.5 mm), the four screw holes are 11/64-inch (4.5 mm) OD. Features include a -40 mm offset, ± 2 mm, ability to pivot in two axes, stainless-steel locking. The system is compatible with all M20 screw-in type prism canisters. System weighs 1.55 lb (0.7 kg)

Small, Lightweight Tilting Reflectors #6600-01 — Diamond Pattern (shown) #6600-03 — Diamond Pattern w/ Crosshairs #6600-04 — 25-mm Mini Prism

25-mm ‘L-Bar’ Mini Prism #6600-02

The 25-mm ‘L-Bar’ is perfect for deformation or mining surveys, or places where a permanent mounting is needed.

The #6600-01 (shown) and -03 feature a 60 mm diamond pattern sheeting and a 2 mm offset. Use for distances up to 492 ft (15 m).

This assembly is constructed of anodized aluminum and the prism is water and dust proof. It features a -25-mm offset and comes with 10.3-mm ID mounting hole.

The #6600-04 features a 25 mm mini prism for longer distances up to 2,000 ft (600 m). All three models feature an 86 mm height and fit Swiss-style male tips or Quick Release adapters (below).

Weighs 0.45 lb (0.20 kg)

Stainless Steel Quick Release Adapters 6601-Series Quick Release Adapters are made of T-303 stainless steel with machined threads that attach to corresponding Anchor Bolts or the 6602-Series rebar bolts. Weighs 0.10 lb (0.05 kg)


1/4 x 20 threads


3/8 x 16 threads


M8 threads


M12 threads

Anodized Quick Release Adapter

Rebar Bolts

This adapter features female 5/8 x 11 threads. It’s made of anodized aluminum.

Rebar Bolt measures 3/4 x 9.9 in (19.05 x 251.46 mm) long comes with a hex bolt used to hammer the bolt in the surface, remove the hex bolt and install the 6601-Series Adapter. Choose between 3/8 x 16 or M12 thread patterns. Weighs 1.25 lb (0.57 kg)

#6602-01 — 3/8 x 16 threads #6602-02 — M12 Threads #6602-03 — M8 threads


Weighs 0.05 lb (0.02 kg)

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Seco 2012 Catalog  
Seco 2012 Catalog  

Seco 2012 Catalog