Boron carbide # 3L Short

Price Each : $82.00

Boron carbide #3L extended length (2-1/8″) straight 3/16″ bore nozzle with 3/4″ fine threads.

Weight 0.35 lbs
Dimensions 4 × 2 × 2 in
SKU 3241188
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boron carbide # 3L short (2-1/8″ length) straight 3/16″ bore, blast cleaning nozzle. with black oxide treated armored steel jacket. this boron carbide # 3 works with a wide range of abrasives including aluminum oxide.

Used mainly for close up blast cleaning of small parts in blast cleaning cabinets or  workshop blast cleaning applications that might use a small blast pot e.g. 1/2 cu ft models. UTBC nozzles are designed to fit 1/2″ I.D. Blast hose and fit a nozzle holder with female 3/4″ NPSM threads.


If you need a shorter boron carbide nozzle with 3/4″ NPSM threads then take a look at our standard UTBC-3 nozzle. This is 1-3/4″ long.


Model: UTBC-3L-ST

Length: 2.125″

Bore: 3/16″

Entry: 1/2″

Liner: Boron carbide

Jacket: Steel


Model No. Part No. Length inches Length mm Bore inches Bore mm Entry Washer
UTBC-3L-ST 3241188 2.125″ 53.98 3/16″ 4.76 1/2″ NW-34
 Aluminum oxide 

Long lasting, extremely aggressive media. Cleans and creates a profile or anchor pattern. 8-9 MOH

Recommend using Boron carbide Nozzles.

Silicon Carbide:

Hardest  commercially available blast media.  Fast cutting. Used for glass or stone etching. 9-9.5 MOH

Recommend using Boron carbide Nozzles.

Important guide lines for installing your new nozzle:

To securely install nozzle in a holder there must be at least 70% of threads engaged in nozzle holder – a minimum of 8 threads on 1-1/4” NPSM or minimum of 4 threads on Contractor / 50mm style sandblasting Nozzle. The more threads engaged in holder the stronger the sandblasting nozzle installation. In engineering terms, the more threads that are engaged the more secure the connection.

Hose should be cut squarely & installed in holder so as to allow bottom of nozzle with washer to seat firmly against hose. There must be 100% contact with washer at bottom of sandblasting nozzle & sandblasting hose. Hose installation in holder should allow blast cleaning nozzle threads to engage in holder as recommended above.

Your quality sandblasting nozzle is supplied complete with a nozzle washer. This washer will provide a seal between end of sandblasting nozzle & blast hose when nozzle is installed correctly. Always use sandblasting nozzle with a washer.

Additional information

Weight 0.35 lbs
Dimensions 4 × 2 × 2 in
SKU 3241188