12PC 11/64 cobalt jl 135DEG rocky mountain twist drills

12PC 11/64 cobalt jl 135DEG rocky mountain twist drills

11/64 COBALT JOBBER LENGTH 135DEG POINT
FLUTE LENGTH = 2-1/8" OVERALL LENGTH = 3-1/4"
ROCKY MOUNTAIN TWIST DRILL BRAND, 100% MADE IN THE USA!
THIS MAKES THESE ONLY 1.21 ea., List on these is $3.62ea
Advancements through technology and process improvements have placed Rocky Mountain Twist as the quality leader of industrial drill bit manufacturing.
Until recently the process of grinding a drill bit from a solid high-speed steel blank has changed very little over the years. A drill bit produced using traditional manufacturing methods is ground in multiple remote operations within a batch. After each shaping operation the drill bits must be moved “manually” to the next machine. This process is repeated until bits are completely ground. Herein lies the problem, each time a drill bit moves from one operation to the next, the bit has to be reoriented within a fixture. This constant reorientation can create variances of critical dimensions in one bit to the next. These variations in geometry translate to reduced performance and inconsistencies in hole size.
At Rocky Mountain Twist, each of our proprietary drill grinding cells transform solid high-speed steel blanks into finished drill bits without leaving the cell. Using revolutionary rotary methodology, a drill blank is oriented once then moves through each manufacturing phase in a precise computer controlled operation. This process innovation ensures the highest degree of repeatable quality manufacturing in the industry