Trend Tools CB12-316TC 3/16 Drill Diameter X 1/2 Counterbore

• The CB counterbores are extensively used for recessing bolt and screw heads. Supplied with a HSS slow spiral drill bit. Fully adjustable, a hex key is supplied. TCT version is used for plywood, particle boards and plastics (abrasive). Use a drilling speeds only. Not suitable for ferrous and non-ferrous metals. When setting-up, ensure flutes of drill are aligned with flute of counterbore. For replacement Twist Drills, use slow spiral type e.g 501/532 to 501/012.

Specifications

• D=1/2 inch
• D=12.7 mm
• D2=3/16 inch
• D2=4.76 mm
• OL=84 mm