GDXXXX orifice drill bits

Orifice gauging drill bit. Specify the size you need. We have sizes 19 through 80 in stock. Contact us for prices and availability of other sizes. Hand drilling is recommended for accuracy. Clean hole after drilling with tapered broach.

Price is per bit. Specifiy size in notes of order. 1/4" hex shank.

Play our 2-minute video below to see how to drill an orifice.