Specification Brand : uxcell BulletPoint1 : [SIZE] - 3.8mm diameter, 70mm length twist drill bit with 3.8mm shank. BulletPoint2 : [MATERIAL] - Cobalt high speed steel is made by spiral technology, has both toughness and hardness, is not easy to break. The drill bit is sharp, and is easy for chip removal. BulletPoint3 : [APPLICABLE MACHINE] - Widely used in rotary tool such as hand drills, drill press, flex shafts, bench drill and hanging mill. BulletPoint4 : [APPLICATION] - Suitable for drilling small holes on glass, metal, sea shells, jade, pearls, marble, stones, drywall and son on. Due to the different hardness of the material, the effect is also different. BulletPoint5 : [NOTICE] - When drilling, it is necessary to add cutting fluid in time to lubricate and cool down, which can get a better drilling hole wall, extends the service life and drilling accuracy. Color : 2.8mm FinishType : Diamond GpsrSafetyAttestation : 1 ItemName : uxcell 3.8mm Drilling Dia High-Speed Steel Cobalt Metric Spiral Twist Drill Bit Rotary Tool 10pcs ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 2 ItemTypeKeyword : brad-point-bits Manufacturer : uxcell Material : High Speed Steel NumberOfItems : 10 PartNumber : a24012500ux1277 ProductDescription : Description:
This product is made of high speed steel and cobalt material. After using full grinding process, it has stronger cutting ability and longer service life. Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). Straight shank works in both keyed and key-less drill chucks.
The advantages of full grinding drill bit:
High geometric precision, strong cutting ability. Smooth surface finish, long service life. Wider using range (rough processing, finishing, semi finishing), and comes with edge clear function, make processing products have better surface finish.