15-100mm Carbide Tipped Bit Set Boring Hole Saw Cutter Woodworking Drill Bits Set for Wood Plastic Plywood Tools

Please Note:1. When drilling holes, the drill bit is made only in the clockwise direction, not reversible, and the speeds from low to high are a gradual process.2. Please grind the tool nose and tips to avoid aging and damage when breaking, or it will cause a steep decrease in accuracy and quality for drilling holes after the tips break.

• TUNGSTEN CARBIDE TIPTungsten carbide is approximately twice as stiff as steel, and is double the density of steel-nearly midway between that of and gold. It is comparable with corundum (-Al2O3) in hardness.Tungsten Carbide tip is specially designed to cut through holes cleanly in end grain and thin stock, great for boring concealed hinges and door locks.
• Bit drill clean holes in soft and hardwood; Two spurs and centering point to give the perfect solution to repeated, clean and accurate hole cutting time after time; The sharp center spur accurately locates the center of your hole.
• Use to drill precise flat bottom holes with no chipping in any thickness of soft wood; For drilling holes in any direction and making arched openings. For drilling partially overlapped flat bottom holes for easy mortising; Should be used with a power drilling machine, here is not included.
• Material: Tungsten Carbide Tip(H-R-C.70) & Carbon Steel Body
• Package;1pcs; 5pcs 15,20,25,30,35mm; 11Pcs=15mm,20mm,25mm,30mm,35mm,40mm,45mm,50mm,55mm,60mm,65mm