• (Guaranteed quality) Drill bits made with the best products for adequate drilling. Manufactured with high speed steel for perfect performance on each drilling.
  • (5 pieces, what you need for your work) Adaptable to most electric drills on the market and come in their plastic case for easy storage and use.
  • (Quality Performance) Our products were tested within the United States, to meet the highest standards. the Drill Bits guarantees accurate and precise drilling in every job
  • [PROPER USE] Drill bits can be used for steel, sheet metal, iron, plastic, aluminum, and / or wood, including softer metals. DO NOT USE FOR CERAMIC, OR HEAT TREATED STEEL
  • Metal drilling for common steel and simple use, ANSI B94. 11M-1993, Size: 21/64 inches, Quantity: 5 PCs

SKU: PRO-HSSB Categories: , , Tags: , ,
Promaker drill bits
drill bits Promaker

High quality

Drill bits with a perfect durability to work on soft metals and wood

Advice to use drill bits

To achieve a less forced drilling, with lower temperatures affecting the bit, and adequate performance, we recommend using lubricants, oil or water if you do not have any of the above.

Fully Ground spiral

The design of all our bits removes particles quickly, also helping to reduce heat and friction, for precise and fast quality work

Weight 1.13 lbs
Dimensions 3.43 × 0.67 × 0.67 in

5/16in (5PCs), 3/8in (5PCs), 1/2in (5PCs), 7/16in (5PCs), 9/32in (5PCs), 11/32in (5PCs), 19/64in (5PCs), 21/64in (5PCs)


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