ITEM NAME:5mm Width Tip Triple-cornered Shank Masonry Drill Bits 10Pcs P8A2 5mm Width Tip Triple-cornered Shank Masonry Drill Bits 10Pcs P8A2 Straight shank design is suitable for many electric drills, mostly fit for hammer drill use. (here is not included); Spiral design will make the drilling be more easy and effortless; High torque transmission with the Triple-cornered shank, can be held in a drill chuck and cannot be held in a collet Product Name : Masonry Drill Bits; Features : Straight Triple-cornered Shank, Spiral Flute; Colour:silvery Material : Metal Tip Width : 5mm; Shank Dia. : 4mm Flute Length : ~4.9cm/1.9 inch Total Length:~8.3cm/ 3.3 inch Total Weight : 82g Package Content;10pcs x 5mm Masonry Drill Bits Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..(here is not included); Spiral design will make the drilling be more easy and effortless; High torque transmission with the Triple-cornered shank, can be held in a drill chuck and cannot be held in a collet.