29/64" 135 Deg. Black and Gold Drill Bits | Jobber Length | 6-Pack torx-star-drive-5-16-shank ducts and machinery to ceilings

ducts and machinery to ceilings and walls using bolts or threaded rods

• Attach fixtures

the quality and high-performance in both metal and concrete formulations exceed the performance of lower cost imports yet only cost a fraction more

Premium grinding wheel made of higher quality zirconia abrasive grain

this is a serious work horse that gives a great blend of material removal and wheel life

29/64" 135 Deg. Black and Gold Drill Bits | Jobber Length | 6-Pack torx-star-drive-5-16-shank ducts and machinery to ceilingsOur professional heavy duty black and gold high speed drill bits come in sizes from 1 16 to 1 2". The drill bits are made of premium high speed hardened steel. The quality of these drill bits allow them to last 3 times longer and drill 2 times faster than standard bits. Premium M2 high speed steel allows the drill bits to run cooler and last longer by making the drill bits harder and stronger. Black and gold surface finish adds lubricity to the tool