WPI - Dial Bore Gage Combination Kit

Bore Gage extensions

Bore gage extension housings with gaging depths up to 36 are normally manufactured from stainless steel tubing. See the price list for ordering data for each model. Bore gages with extra length extensions beyond 36 are now standard in carbon fiber. Most long bore gages are normally produced from stainless steel tubing up to 72 depths. Traditionally, beyond this length, the #4, #5 and #6 bore gages are constructed using segmented steel tubing. All extra length bore gage tubing are now provided with carbon fiber extensions that are lighter weight, more thermally stable, and structurally stronger.

# 6 Standard bore gage with 5’ steel extension housing. The Weight is 7¾ lbs/3.52kg (less range extensions)

# 4 Standard bore gage with 4’ carbon fiber extension housing. The weight is 2½ lbs/1.13kg (less range extensions)

# 6 Standard bore gage with 4’ carbon fiber extension housing. The weight is 4 lbs/1.8kg
(less range extensions).