Measuring & surveying products for drill & blast operations in mining & quarrying.

We’re pleased to offer the Keson range of measuring products from USA.

For over 40 years Keson tapes consistently meet the highest standards of accuracy and durability. They resist breakage and damage under the toughest field conditions. Keson cover each blade with two coats of PVC, one to bind the fiberglass strands and a second over the printed units, so the numbers don’t wear away easily.

Depth Gauge series

These tough fiberglass tapes are the ultimate solution for measuring depth of blast holes. Attach a weight to the snap ring and lower to measure depth. The depth gauges are incredibly durable, flexible and lightweight with graduations printed on both sides for ease of use & error reduction.

 

FEATURES

• Numbers are graduated from the weighted end of the tape strap
• Swivel at weight end (see photo right) to prevent twisting & premature failure of the tape
• Tough, flexible and lightweight with graduations printed on both sides.
• White with black and red markings, large font – easy to read even when dirty.
• Coating: Clear Coat.
• Tensile Strength: 100kg.
  

  Dipping weight (340, 450 & 650g) with ring clip

RANGE

Oresome Part#	Description	Size (m)	Tapes/box	Box weight (kg)	Box size (cm)
1-026081	DG15M – Depth Gauge	15	10*	3.1	33 x 25 x 18
1-026999	DG20M – Depth Gauge	20	10*	4.1	33 x 25 x 18
1-026098	DG30M – Depth Gauge	30	10*	6.3	33 x 25 x 18
1-026104	DG50M – Depth Gauge	50	10*	10.5	33 x 25 x 18

* Available individually as well

Hand reels

Tough yet economical hand reel to suit DG-series depth gauges, SR-series surveyor ropes and polyline markout tapes.  The plastic version (20m capacity, part number 1-110046) has a center handle that runs inside outer spool, with generous-sized handle for rapid recovery & storage of the depth gauge.  The canvas version (100m capacity, part number 1-000400, pictured right) has steel inner & outer rings & reinforcing bias material on the outer edges for high wear resistance & extended service life.

Surveyor Rope series

These tough fiberglass tapes are an ideal drag chain for rough surveying measurements on the bench. Numbers are graduated from the strap handle upward to the end of the rope.  OSR-MM series are double-side marked, metric graduations both sides, and are reputedly more accurate and easier to read than some poly-chain mark-up tapes.

 

FEATURES

• Tough, flexible and lightweight
• White with black and red markings, large font – easy to read even when dirty
• Coating: Clear Coat
• Tensile Strength: 100kg

RANGE

Oresome Part#	Description	Size (m)	Tapes/box	Box weight (kg)	Box size (cm)
1-021772	SR30M – Survey rope	30	10*	6.0	33 x 25 x 18
1-021789	SR50M – Survey rope	50	10*	10.4	26 x 25 x 28
1-021802	SR100M – Survey rope	100	10*	16.6	47 x 53 x 56
1-029999	OSR100MM – Survey rope	100	10*	16.6	47 x 53 x 56
1-150150	OSR150MM – Survey rope	150	10*	25.0	47 x 53 x 56

* Available individually as well

OTR Series open tape reels

Keson open tape reels (OTR) come in durable polycarbonate case with Ultra-Glass™ blade.

 

FEATURES

• Tough, flexible and lightweight with metal reinforced handles and double-fastened cases.
• Tough moulded handle is easy to grasp.
• Double-throat rollers guide the blade return to prevent the tape from twisting.
• Markings both side of the clear-coated Ultra-Glass™ blade.

 

 RANGE

Oresome Part#	Description	Size (m)	Tapes/box	Box weight (kg)	Box size (cm)
1-001040	OTR15MM – Open reel measure tape	15	10*	5.9	33 x 41 x 21
1-010455	OTR30MM – Open reel measure tape	30	10*	7.3	33 x 41 x 21
1-010462	OTR50MM – Open reel measure tape	50	10*	10.0	38 x 28 x 43
1-020027	OTR100MM – Open reel measure tape	100	5*	7.7	33 x 21 x 21

* Available individually as well

 

STK Series Pin Flags

Our surveyor stake pin flags have a standard 64mm x 89mm PVC flag on a 530mm steel pin stake.  Oresome Products stock WHITE as standard & recommend our customers mark the flag according to their needs using marking paint to reduce inventory, instead of keeping multiple colored flags.