10PCS 0.3 mm to1.2 mm PCB Mini Drill Bit Tungsten Carbide Steel Drill Bit Machine for Printed Circuit Board

Features 1 The bit space of the drill bit is large The chip resistance is small the chip discharge is smooth the heat generated by the hole is small and the drilling is reduced 2 Extraordinary cutting edge sharpness Due to the use of nanotechnology and advanced grinding technology the cutting edge of the drill bit is sharper than before which can reduce the cutting force reduce the drilling rate and improve the quality of the hole wall 3 Tool design based on customer application There are a wide variety of drills to meet different application needs All parameters of the drill bit such as core thickness and core taper have been carefully designed and effective 4 Cutting edge is strictly symmetrical it is beneficial for efficient cutting and avoiding drilling offset 5 The blade is imported hard alloy the handle is white steel and the whole tungsten steel is also available 6 Applicable to wood plastic and other soft materials carved chamfering chamfering slotting reaming hollow and other sculpture operations Specifications Material Hard alloyColor SliverBox Size 82 x 52 x 10mm 3 22 x 2 04 x 0 39inWeight with box 37g 1 31ozQuantity 10pcsPackage size 120 x 80 x 10mm 4 72 x 3 14 x 10 39inPackage weight 37g 1 31ozPackage Included 10 x Small Drill Bits1 x Box