Description of ๐ง OptiCenter Woodworking Precision Drilling Replacement
High speed steel drill bit and brass body with electroplating; Standard 1/4" hex shank fits all power drill bit and quick-change chucks. PRECISE POSITIONING: No displacement, sawdust will be automatically discharged from top of hole on both sides, drill bit will not be blocked. 16 in-1: 5/64', 7/64'', 9/64''*2, 11/64'', 13/64'', 5mm and 1/4 with 1 Hex Key & 8 Replacement bit The center drill set features self-centering to reduce bit walking, increases precision and efficiency when drilling. Usage: perfect for drilling precise holes in cabinet door window hinges, handles, drawer slides, woodworking and more. Attention: Choose low speed when drilling (2000R/min - 3000R/min is good); If too fast, bit may fail to centering, get broken or jammed.