Set of 6 High Speed Steel sizes; 7mm, 8mm, 3/8in, 10mm, 10.5mm and 12.5mm
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Set of 6 High Speed Steel Standard Grint drill bits in the following 6 most common pen making sizes; 7mm, 8mm, 3/8in, 10mm, 10.5mm and 12.5mm sizes. These quality High Speed Steel Jobber/Machinists style bit have a 118deg grind. Suitable for drilling Acrylic and Stabilized blanks. May wander with the grain in drilling wood.