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> 12PCS #37 cobalt jl 135DG rocky mountain twist drills
12PCS #37 cobalt jl 135DG rocky mountain twist drills
12 Pcs #37 COBALT JOBBER LENGTH 135DEG POINT
FLUTE LENGTH = 1-7/16" OVERALL LENGTH = 2-1/2"
ROCKY MOUNTAIN TWIST DRILL BRAND, 100% MADE IN THE USA!
THIS IS FOR A PACKAGE OF 12PCS
THIS MAKES THESE DRILLS ONLY $.99ea., List on these are $2.77ea
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
