HIGH QUAILTY MATERIAL: High-Speed Steel(HSS) with titanium plating provides high hardness and durability, which avoids rusting and resists abrasion.135° split point tip allows fast cutting, chips clearing and precise drilling.
STACKABLE STORAGE BOXES: Created with push buttons for stacking, boxes of various sizes can be securely combined for easy carrying and storage. The printed mark on the box allows for quick identification. This case makes it simple to carry and organize drill bits.
21PCS DRILL BIT SET: 16 commonly used sizes, including : 2x1/16",2x5/64",2x3/32",2x7/64",2x1/8",9/64",5/32",11/64",3/16",13/64",7/32",15/64",1/4",5/16",3/8",1/2".Satisfy various diy assignment, repairing demand and household improvement.
UNIVERSAL COMPATIBLE SYSTEM: 21PCS Titanium impact twist drill bit set is compatible with power drill driver, impact drivers, and other power tools, easily for locking into quick change chuck.
APPLY MATERIAL: Suitable for wood, PVC, soft metal including copper, aluminum alloy, plasterboard, stainless steel, etc. CAN NOT used for glass, ceramic or masonry construction materials.