DKIBBITH 12-Piece Countersink Drill Bit Set with 5 Spare Bits, 2 Limit Rings, 1 Hex Key, 2 Screws & Case - 3-in-1 Wood Countersink Bit for #6#8#10#12#16 Screws, 82°Chamfer, Depth Adjustable.

• 3-in-1 Precision Combo-5 Pcs Countersink Drill Bit, chamfer & counterbore holes for #6 #8 #10 #12 #16 screws in one step.
• Extend Tool Life-Includes 5 extra M2 pilot bits (for #6 #8 #10 #12 #16 screws) + 2 Limit Rings to prevent over-drilling and replace worn bits instantly.
• Adjustable Depth Control-Detachable pilot bits slide in 82° countersink sleeves; lock depth with included hex keys. Counterbore diameter: 10mm (max depth12mm).
• Pro-Grade Accessories-Comes with 2 hex wrenches + 2 demonstration screws + rugged storage case. Fits all 6mm hex shank drills.
• Universal Wood Mastery-Works flawlessly in hard/softwoods.For softwood, use one size smaller bit than the screw (e.g., #12 screw → 3.5mm bit).

DKIBBITH Countersink Drill Bit Set: Where Precision Meets Durability Upgraded 12-Piece Countersink Drill Bit Set Our enhanced set includes 5 original M2 drill/countersink/counterbore units (for screws #6 to #16) +5 spare pilot bits (#6, #8, #10, #12, #16) +2 depth-limiting rings+1 hex keys +2 screws+a protective case. Every component is engineered for woodworking excellence. Screw Size： #6 Screw → 2.5mm Pilot #8 Screw → 2.8mm Pilot #10 Screw → 3.2mm Pilot #12 Screw → 3.5mm Pilot #16 Screw → 4.8mm Pilot Pro Tip: For softwoods, use a pilot bit ONE SIZE SMALLER than recommended. Package Includes: 7x Drill/Countersink Units (sizes #4 to #16) 5x Spare Pilot Bits (#6 #8 #10 #12 #16) 2x Hex Wrenches 2x Limit Rings 2x Demonstration Screws 1x Storage Case Why Choose DKIBBITH? 82° Chamfer & 10mm Counterbore: Perfectly recess screw heads flush or below surfaces for seamless wood plugs. M2 High-Speed Steel Bits: Hand-ground tips grip screw threads full-length. Pilot bits detach to customize drilling depth. Limit Rings: Prevent over-drilling in delicate projects – set depth once, drill confidently! Hex Shank Universal Fit: Compatible with all 6mm quick-chuck drills.