Plumb Bobs & Field Books

Plumb Bobs

Leica GS20 Tripod

Precision Machined for perfect balance and lacquered for a lasting finish. Includes a hardened steel point with ASA thread. Steel ASA screw cap allows storage for an extra point. Call for pricing.

Available Weights:

  • 6 oz. (170g)
  • 8 oz. (225g)
  • 10 oz. (285g)
  • 12 oz. (340g)
  • 14 oz. (400g)
  • 16 oz. (455g)
  • 18 oz. (510g)
  • 24 oz. (680g)
  • 32 oz. (910g)
  • 80 oz. (2270g)

Extra caps and extra points available.

CST Leather Scabbards

plumb bob scabbards

Heavily stitched and riveted for long life, these sheaths are made of top grain saddle leather. A strong metal snap secures the bob in the sheath.

Suitable for the following plumb bob weights:

08 to 10 oz. Article No: 11-556
14 to 18 oz. Article No: 11-557
24 to 32 oz. Article No: 11-558

Replacement Plumb Bob Cord

Gammom Replacement Reel

Braided Medium White Plumb Bob Cord
Orange Bobbin of orange nylon cord, 24 yds (21.9m)
Braided linen cord comes in 25 yard spools

Gammon Reels ®

Gammon Reels

An aid to set up and deploy a clean, accurate plumb. Slip the reel into your palm and draw the bob to desired position and stop with finger pressure. Steel clock spring zips the string back into the case.


Available as:
• Gammon Reel®, with hi-vis black and orange target
• 12' (3.6m) Gammon Reel®
• 7' (2.1m) Gammon Reel®, with 72 lb. test orange nylon cord

Level Books

Gammon Reels

Call Northern Survey Supply for more selections on Surveying Stationary
1.800.461.3223 with Canada. Outside Canada call 705.744.3246
Email Treena and she'll help sort you out


Rite in the Rain LEVEL
Item #: JLD313
Size - 4 5/8 in x 7 in
Page Pattern - Level
Binding - Side wire-o Spiral
Cover - Polydura (yellow)
Number of Pages - 64
Weight - 0.2 lbs
Number of Sheets - 32

Rite in the Rain Heavy Polydura LEVEL
Item: JLD310
Size - 4 3/4 in x 7 1/2 in
Page Pattern - Level
Binding - Sewn
Cover - Heavy Polydura (yellow)
Number of Pages - 160
weight - 0.6 lbs
Number of Sheets - 80

DuksBak Waterproof Coilbound LEVEL
Item#: WL-7DUCKSBAK
50 DUKSBAK waterproof sheets in each book.
Bound with white plastic coil.
7" x 4-1/2"

Field Books

Gammon Reels

Call Northern Survey Supply for more selections on Surveying Stationary
1.800.461.3223 with Canada. Outside Canada call 705.744.3246
Email Treena and she'll help sort you out



Rite in the Rain FIELD
Item #: JLD353
Size - 4 5/8 in x 7in
Page Pattern - Field
Binding - Side wire-o Spiral
Cover - Polydura (yellow)
Number of Pages - 64
Weight - 0.2 lbs
Number of Sheets - 32

Rite in the Rain Heavy Polydura FIELD
Item: JLD350
Size - 4 3/4 in x 7 1/2 in
Page Pattern - Field
Binding - Sewn
Cover - Heavy Polydura (yellow)
Number of Pages - 160
Weight - 0.6 lbs
Number of Sheets - 80

DuksBak Waterproof Coilbound FIELD
Item#: WF-7DUCKSBAK
50 DUKSBAK waterproof sheets in each book.
Bound with white plastic coil.
7" x 4-1/2"

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