Type 240-UB

Jobber Length Drill

Ultra Bor™ Super Premium

Special Hi-Molybdenum tool steel. 135° split point for fast penetration and accurate starting without a center punch. Precision ground point, body, clearance and drill diameter for the ultimate in accuracy and performance. Body and clearance are gold surface treated for maximum lubricity. Drills are heat treated at 2185° F and then nitro-carburize finished at 950° F to be measurably harder than high speed steel. Space aged 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.

Type 240-UB Super Premium Jobber Length Drill Sets

SP-13

13 pcs

1/16 thru 1/4 by 64ths

SP-15

15 pcs

1/16 thru 1/2 by 32nds

SP-21

21 pcs

1/16 thru 3/8 by 64ths

SP-26

26 pcs

Letters A thru Z

SP-29

29 pcs

1/16 thru 1/2 by 64ths [shown above]

SP-29P

29 pcs

same as above in heavy Plastic Case with Hook

SP-60

60 pcs

Numbers 1 thru 60

SP-115

115 pcs

1/16 thru 1/2 by 64ths, A thru Z, and 1 thru 60

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