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Type 280-UB
1/2" Shank - Silver and Deming Drill
Ultra Bor™ Super Premium
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3 Flats on Shank
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Special Hi-Molybdenum tool
steel.
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135° split point for fast
penetration and accurate starting without center punch.
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Sizes larger than 3/4" diameter
have 118° split point.
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Precision ground point, flute,
body, clearance, and drill diameter for the ultimate in accuracy and
performance.
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Body and clearance are gold surface
treated for maximum lubricity.
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Space age nitro-carburized steel
withstands substantially higher drilling temperatures while maintaining
sharpness.
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Recommended for use in work
hardening grades of stainless steel and other hard metal drilling
applications.
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.JPG)
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Type 280-UB Reduced Shank Silver & Deming Drill Sets |
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S&D-4SP |
4 pcs |
9/16, 5/8, 3/4 & 1" |
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S&D-8SP |
8 pcs |
9/16 thru 1" by 16ths, Silver & Deming |
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S&D-33SP |
33 pcs |
1/2 thru 1" by 64th, Silver & Deming [shown
above] |
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