Viking Drill & Tool Super Premium Ultra Bor Black & Gold Mechanic Length Type 258-UB: 3-Flats on Shank - 3/8" Reduced Shank Sets

Edge of Arlington offers free shipping in the United States when you choose flat rate shipping.

  • Special Hi-Molybdenum tool steel.
  • 135° split point for fast penetration and accurate starting without 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.
  • 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.
  • Specially designed for hand-held drills.
  • Flats on shank give positive chuck-grip (3/16 and larger).
  • Reduced shank with flats for positive chuck grip.
Item # No. of PiecesPack QuantityAdditional Detail Price Add To Cart
Compare 92340 (RSPM-21) 211 Set $95.28 Add to cart
Compare 57910 (RSPM-15) 151 Set $83.75 Add to cart
Compare 57920 (RSPM-29) 291 Set $153.31 Add to cart
Compare 57950 (RSPM-29P) 291 Set $157.47 Add to cart
Compare 58150 (RSPM-29PO) 291 Set $157.47 Add to cart