Koopi 4 5 8 Hole Saw with Arbor HSS Bi Metal Hole Cutter for Easily Drilling Wood Plastic Thin Metal 117mm

Koopi 4-5/8" BI -Metal Hole Saws, Cutting for wood Plastice, thin Metal, Fiberboard ? Features: - Cutting diameter: 117mm/4.625'' - High performance material: Bi-metal and Hss - Unique teeth configuration for fast removal of cutting materials. - Fit all 3/8" and 1/2" power drills. ? Package Included: - 1 pc 4-5/8 inches hole saw - 1 pc 3/8" Hole saw Mandrel - 2 pcs Pilot drill bit - 1 pc Hex key ?12 MOUTHS GUARANTEE - With our unbeatable 12 months warranty and 30 day 100% Satisfaction Guarantee, buy with confidence! We attach great importance to customer's shopping satisfaction and are willing to solve any problems you have, please feel free to contact us by email. ?NOTES: - Before using the hole saw tool, be sure to grasp the rationality, selection, control, tachometer and continuously add coolant when cutting metal to prevent edge cracking - It is OK for drilling as clockwise rotation, but not anti-clockwise. - The spring on the pilot drill bit helps remove disc, but if you need to cut a thicker board, pls remove the spring