4Pcs Square Hole Drill Bits Woodworking Bearing Steel Wood Drilling Tools Set 11‑12.7mm

Feature: 1. Drill bit is forged with bearing steel, the overall heat treatment hardness is high, and the service life is long. 2. U‑long chip flute designed is convenient for the discharge of wood chips and improves drilling efficiency. 3. The force of the cutting edge of the drill bit is on a plane, which effectively protects against bursting at the beginning of use. 4. Universal shank type, the drill tail adopts a circular designed, which makes the clamping more stable. 5. With great workmanship, the hole drill bit can perfect replacement for the old one Specification: Item Type: Square Hole Drill Bits Material: Bearing steel Model: 11mm 12mm 12.5mm 12.7mm Application: Suitable for wood products such as MDF, MDF, particle board, wood, etc., suitable for Square hole drills, Square tenon machines Specification Square hole size Shank diameter Grooving depth Total length weight 11mm(Approx.) 11mm 0.4in 8mm 0.3in 60mm 2.4in 195mm 7.7in 210 g 7.4 oz 12mm(Approx.) 12mm 0.47in 10mm 0.4in 60mm 2.4in 195mm 7.7in 220 g 7.8 oz 12.5mm(Approx.) 12.5mm 0.49in 10mm 0.4in 60mm 2.4in 195mm 7.7in 220 g 7.8 oz 12.7mm(Approx.) 12.7mm 0.5in 10mm 0.4in 60mm 2.4in 195mm 7.7in 220 g 7.8 oz . Package List: 1 x 11mm Square Hole Drill Bits1 x 12mm Square Hole Drill Bits 1 x 12.5mm Square Hole Drill Bits 1 x 12.7mm Square Hole Drill Bits