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Features:- [High-speed Steel Construction]: Made of heat-treated high speed steel with HRC48-50 high hardness, strong and durable. Clamping shank diameter: 19mm (Round), Radial drill sleet reduced resistance.- [Standard Chip Flute Design]: Easy to exclude side sawdust, improvedrilling efficiency.- [..

Description:6-22mm Woodworking Square Hole Drill Bit Mortising Chisel Tenon Drill BitSpecification:Product NameWood Working Square Hole Drill BitSize1/4(6.4mm), 5/16(8mm), 3/8(9.5mm), 7/16(11mm), 1/2(12.7mm), 9/16(14mm), 5/8(16mm), 3/4(19mm), 7/8(22mm), 6mm, 10mm, 12mm, 12.5mm, 18mm,A - (6mm+8mm+9.5..

Description: 6.35/7.94/9.5/12.7mm Woodworking Mortising Chisel Square Hole Drill Bit 1/4 to 1/2 InchSpecification:MaterialHigh-speed steelHardnessHRC48-50Size1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.5mm), 1/2" (12.7mm) Clamping shank diameter 19mm (Round)Length210mm Features: 1. This Mortis..