4.5 mm Dia. x 6 mm Shank x 43 mm Flute Length x 81 mm OAL, 8xD, 140°, TiAlN, 2 Flute, Coolant Thru, Round Solid Carbide Drill - ID: AX8182015
Dormer 4.5 mm A110 Long Drill Bit 5967763, Steam Tempered Finish, 126 mm Overall Length, 82 mm Flute, High-Speed Steel | RSHughes.com
Hilti TE-CX 1/4 in. x 6 in. SDS-Plus Style Masonry Hammer Drill Bit 435000 - The Home Depot
Cleveland - Jobber Length Drill Bit: 4.5 mm Dia, 118 °, High Speed Steel - 63689970 - MSC Industrial Supply
Precision Twist Drill - Taper Length Drill Bit: Series QC91PM, 4.5 mm Dia, 135 ° Point, High Speed Steel - 78552890 - MSC Industrial Supply
1/4" Universal Hex Shank HSS Brad Point Drill Bit Set 1.5-10mm Bit Wood Boring | eBay
OSG - Extra Length Drill Bit: 4.5 mm Dia, 140 ° Point, Solid Carbide - 48875603 - MSC Industrial Supply
uxcell 12-24 UNC Straight Flute Thread Tap and 4.5mm Twist Drill Bit Set, Titanium Plated 6542 High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com