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Ultra Bor Super Premium - 135° split point for fast penetration and accurate starting without a center punch. Precision ground point, flutes, body, clearance, and drill diameter for the ultimate in accuracy and performance. Body and clearance are gold surface treated for maximum lubricity—low temperature stress relief improves lubricity and toughness.

Manufactured to NAS 907B specification from Premium Hi-Molybdenum Steel.

Drills are heat-treated at 2185°F and then nitro-carburize finished at 950°F to be measurably harder than high-speed steel. Space age nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness. Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications. Sizes smaller than #52 have non-split points.

Ultra Bor will substantially outperform cobalt drills in work hardening stainless steel and other tough drilling applications.


 
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Item #

Letter Size

Overall Length

Flute Length

Qty. per pack

Manufacturer

Price

Add To Cart/Request Quote
39460 N/A A N/A 3 7/8 in N/A 2 5/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $40.32 Add To Cart
39470 N/A B N/A 4 in N/A 2 3/4 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $40.32 Add To Cart
39480 N/A C N/A 4 in N/A 2 3/4 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $40.32 Add To Cart
39490 N/A D N/A 4 in N/A 2 3/4 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $38.69 Add To Cart
39500 N/A E N/A 4 in N/A 2 3/4 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $35.42 Add To Cart
39510 N/A F N/A 4 1/8 in N/A 2 7/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $43.39 Add To Cart
39520 N/A G N/A 4 1/8 in N/A 2 7/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $46.75 Add To Cart
39530 N/A H N/A 4 1/8 in N/A 2 7/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $47.90 Add To Cart
39540 N/A I N/A 4 1/8 in N/A 2 7/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $47.90 Add To Cart
39550 N/A J N/A 4 1/8 in N/A 2 7/8 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $50.30 Add To Cart
39560 N/A K N/A 4 1/4 in N/A 2 15/16 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $56.26 Add To Cart
39570 N/A L N/A 4 1/4 in N/A 2 15/16 N/A 12 (price reflects pack of 12) N/A Viking Drill & Tool $54.53 Add To Cart
39580 N/A M N/A 4 3/8 in N/A 3 1/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $29.81 Add To Cart
39590 N/A N N/A 4 3/8 in N/A 3 1/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $29.81 Add To Cart
39600 N/A O N/A 4 1/2 in N/A 3 3/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $29.81 Add To Cart
39610 N/A P N/A 4 5/8 in N/A 3 5/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $33.46 Add To Cart
39620 N/A Q N/A 4 3/4 in N/A 3 7/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $34.46 Add To Cart
39630 N/A R N/A 4 3/4 in N/A 3 7/16 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $35.90 Add To Cart
39640 N/A S N/A 4 7/8 in N/A 3 1/2 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $38.78 Add To Cart
39650 N/A T N/A 4 7/8 in N/A 3 1/2 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $43.54 Add To Cart
39660 N/A U N/A 5 in N/A 3 5/8 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $42.86 Add To Cart
39670 N/A V N/A 5 in N/A 3 5/8 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $44.59 Add To Cart
39680 N/A W N/A 5 1/8 in N/A 3 3/4 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $50.74 Add To Cart
39690 N/A X N/A 5 1/8 in N/A 3 3/4 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $55.58 Add To Cart
39700 N/A Y N/A 5 1/4 in N/A 3 7/8 N/A 6 (price reflects pack of 6) N/A Viking Drill & Tool $65.14 Add To Cart
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