[Type 3]
Super versatile: suitable for drilling and engraving PCB, acrylic, plastic, fiberglass, wood, aluminum, soft metals. Used in PCB drilling machines, engraving machines, CNC lathes, and machining centers. Works quickly and cleanly, leaving no faults or scrap behind.
Description:
1. 4 piece set includes bits for drilling pilot holes for screw sizes #5, #6,#8,#10 and #12
2. Special designed steel counter sleeve countersinks or counter bores pilot hole
4. Adjustable counter sleeve depth with Allen wrench
4. Standard hex shank is quick change compatible
5. Drill and countersink for wood screws without changing bits
6. Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew
Specifications:
Color: As the pictures show
Material: HSS Drill 4241
Black chamfer drill body material: steel 45
Dimension:
5# 1.98mm(0.07795 inch)x 50mm(L)
6# 2.38mm (0.0937 inch) x 55mm(L)
8# 2.78mm (0.1094 inch) x 60mm(L)
10# 3.175mm (0.125 inch) x 63mm(L)
12# 3.56mm (0.14 inch) x 65mm(L)
Shank: 1/4 hex shank
After-sales guarantee: Our drill bits are of first-class quality and have a good reputation. They have been inspected by a large number of customers. If there are any after-sales problems with the product, please contact us in time and we will do our best to satisfy you!