5/16-18 UN Thread tap with Φ6.6 Drill Combination Drill and Tap Bit Set Tap & Drill bits Tap and Drill Set Drilling Tapping (5/16-18 tap + Φ6.6 Drill)

Features ☞Model: 5/16-18UN threading tap + Φ6.6 Straight shank drill ☞The diameter of the drill matched perfectly with the tap to process standard UNC/UNF.

Tap and drill set provides a secure method of drilling the proper hole size before cutting right-hand internal threads.

☞Being made of high speed steel which ensure the tap and drill has long effective life and high hardness.

118° tips and twist design.

Drill bit is matched with tap for correct size, plug tap makes more accurate hole position when process hollow-holes, straight groove tap is used on blind holes.

☞Suitable for most of CNC machine and general material purpose applications, delivering more accuracy threads and are cleaner than machined threads.

☞Package Included: 1pc thread tap and 1pc drill.