Extension Tube Air Blow Gun

Quick Answer: When Should You Choose the AS121-4 Extension Air Blow Gun?

The LEMATEC AS121-4 is a lightweight pneumatic blow gun for clearing dust and loose debris from high, deep, or recessed areas that a standard short nozzle cannot reach comfortably. Its extension tube adjusts from 7 to 11 inches, while the tool is specified for 90 PSI operating pressure and 16 CFM air flow at 100 PSI. Choose it when reach and directed airflow matter more than a compact nozzle.

7-11 inAdjustable extension tube

16 CFMAir flow at 100 PSI

90 PSIOperating pressure

Application and Buyer Check

Use case	Recommended setup	Why it matters	Buyer check
Deep machine recesses	Extend the tube only as far as access requires	Directed reach reduces awkward hand positioning	Confirm the nozzle path is clear before applying air
Elevated shelves or fixtures	Use controlled pressure and a stable stance	Extra reach can reduce unnecessary stretching	Confirm debris will not be blown toward people or equipment
Automotive and workshop cleaning	Match a 1/4 in air inlet and adequate compressor flow	Air supply must support real working airflow	Check hose, coupler, regulator, and available CFM
OEM or distributor programs	Specify market, quantity, packaging, and required documentation	Clear requirements support faster project review	Ask about samples and available customization

Core facts: Model AS121-4 uses an ABS body, a 1/4 in air inlet, an adjustable 7-11 in extension tube, and is listed as Made in Taiwan. Never direct compressed air toward people, skin, or eyes; use suitable PPE and follow workplace air-safety rules.

Get the Right Extension Blow Gun Setup

Send your cleaning area, available air pressure and CFM, quantity, target market, and delivery requirement. LEMATEC can review product fit, air-line compatibility, sample needs, and OEM/ODM options.

Request Application and Quote Guidance