RMT NAS Grade HSS Bright Finish Jobber Drill Bit 135°.Manufactured by Rocky Mountain Twist Drill at the foot of the Rocky’s in Montana USA, heavy duty JH500 Bright Finish HSS Jobber drill bits feature a 135° split point which penetrates the surface on contact. The split point also self-centers, with both properties helping prevent the drill from wondering and minimising the need for an initial spotting operation. The drills flutes are precision ground using the latest CNC technology for faster and more efficient swarf and chip removal. Ground precisely to tight quality standards, the flutes deliver superior cutting performance and accuracy. Like all RMT drill bits, these bright finish jobber drill bits are manufactured from industrial grade NAS (National Aerospace Standard) High Speed Steel.
MaterialsAluminum, Copper, Wood, Plastic, Steel (low and medium carbon), Alloy Steel
SizesImperial diameters; including fractional drill sizes from 1/16” (.0625) to ½” (.5000), wire drill sizes from #1 (.2280) to #60 (.0400) and letter drill sizes from A (.2340) to Z (.4130).