Shop for Air Grinders in Air Tools & Accessories. Global Industrial is a Leading Distributor of Tools & Instruments supplies. x. Take 15% off your entire order! Offer applied at checkout. ... Aircat® Straight Die Grinder Extended Shank, 1/4" Air Inlet, 22000 RPM. Item #: WBB1319597. Not Yet Rated . $172.95 Free Shipping. Add to Cart.