KAY-ZEE INC.

If the Micro Chuck is not tightened excessively in the Vent Drill chuck, it will act as a clutch to allow the drill to slip slightly if the drill hits an obstruction.  The Micro Chuck is not hardened.  It is intended that the Micro Chuck slip in the Vent Drill chuck for one short instant of time so the drill bit will not break allowing time for the operator to release the trigger.  The trigger on the Vent Drill reacts quickly.  Only one hand is required by the operator to handle the Vent Drill tool and the trigger.  With this arrangement the operator does not jerk the tool to turn it off and does not have to take it out of the vent to turn it off.   This reduces drill breakage and reduces broken drill retrieval costs.

 

 

Kay-Zee Inc. can supply micro-chucks altered to hold #55 and #54 (1.30mm and 1.40mm) vent drills.  Do not use the #55 and #54 drills in the Vent Drill as it will cause serious damage to the motor.  (The 801 is to be used for #74, #69, 0.60mm and 0.80mm vent drills for vent clean-out work).  Use a larger air motor for #55 and #54 drills.

Broken drills in molds are very expensive and cost considerable production time to remove.  Kay-Zee Inc. has tried to minimize drill bit breakage with the combination of the Vent Drill and the Micro-Chuck.