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Specifications:Materialhigh carbon steelSize6/6.4/8/9.5/10/12.5/12.7/15/16/18/19/20mmQuantity1pcsFeatures:- This is great for drilling square holes in wood with a mortising machine Specification- Square hole drill can not be used on an electric drill, drill square holes need to fit a square hole dri..

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+8m..