T3 Tap 5/16"-18 x 4" – Prather Custom Cue Parts
5/16"-22 UNS HSS Plug Tap and "G" HSS Drill Bit Kit, Qualtech | POUFS5/16-22 | DrillsandCutters.com
5/16-24 UNF 2B Straight Flute Tap 6.8mm Drill Bit High Speed Steel Tap & Bit Set | eBay
Century 3/8-16 Tap & 5/16 Drill - Whatchamacallit Tools
5/16"-24 Type 40-AG 118° Split Super Premium Combination Tap Drill Bit | eBay
5/16" HSS Black & Gold KFD Split Point Jobber Length Drill Bit, Killer Force Drill Bit | KFD5/16 | DrillsandCutters.com
IVY Classic 5/16-18 UNC Combo Drill/Tap Bit
Century Drill & Tool 5/16-18 National Coarse Carbon Steel Tap-Plug and f Letter Gauge Drill Bit - Valu Home Centers | For the do-it-yourselfer in you
5/16" (3/8" Tap Size) VersaDrive TurboTip Impact Drill Bits - 209016-0070 | Tanner
Performance Tool® W8632 - SAE Tap/Drill Bit Set (5/16"-18 UNC Tap, 17/64" Drill Bit) - TOOLSiD.com
Irwin Hanson 80235 5/16"-18NC Plug Tap & 'G' Drill Bit Set
5/16"-24 High Speed Steel Plug Tap and I High Speed Steel Drill Bit - Walmart.com
DEWALT F Drill and 5/16 in. x 18 NC Tap Set DWA1412 - The Home Depot
5/16-18 Drill/Tap Bit for Stainless Steel | Greenlee
What size drill bit for 5/16" tap? | The H.A.M.B.
Century Drill & Tool 5/16-24 National Fine Plug Carbon Steel Tap & I Letter Drill Bit Combo Pack - Power Townsend Company
DEWALT Drill Tap, UNC, 5/16-Inch (DWADT51618) - Amazon.com
5/16-18 UNC H2 Straight Flute Tap 6.5mm Drill Bit High Speed Steel Tap & Bit Set | eBay
5/16" - 36 HSS Right Hand Thread Tap with 7.3mm Drill bit: Amazon.com: Industrial & Scientific
5/16-24 UNF Straight Flute Tap 6.5mm Twist Drill Bit Set Titanium Plated Tool | eBay
Made in USA - Combination Drill Tap: 5/16-24, H3, 2B, 2 Flutes, High Speed Steel - 82771247 - MSC Industrial Supply
SHOCKWAVE™ Impact Rated 5/16"-18" Steel Drill Tap Bit | Milwaukee Tool
