6mm Diamond Drill Grinding Bit Set, 1/8 Shank Stone Carving Set Diamond Burr Bits for Stone Ceramic Carving, Grinding, Polishing, Engraving, Sanding, 40Pcs

Special Features

[Three-point Design] The countersunk drill bit is set with tri-cuspid center to ensure that the drill bit does not shift and not easy to slide, has no deviation, which is beneficial for accurate and rapid drilling.
[Quick Chip Removal] The five-edged chamfer design of the countersink helps to automatically and quickly remove chips from both sides from the hole.
[High Speed Steel Material] The countersunk bit is made of HSS 4241 with high hardness, strong cutting force and good wear resistance.
[Adjustable and Removable] The countersunk bit and the five-slot chamfer can be easily adjusted or removed by the provided L-shaped hex wrench.
[Package Content] A set of countersunk bits are equipped with 7 pieces of countersunk drill bits, #3, #4, #5, #6, #7, #8, #10, including one L-shaped hex wrench.

Description

Specification:
(Shank Dia*Total Length)
3mm x 61mm
4mm x 75mm
5mm x 85mm
6mm x 91mm
7mm x 100mm
8mm x 112mm
10mm x 124mm

Material:
High Speed Steel 4241

Application:
Drill into the screw hole and keep it on the same axis. After screwing in the screw, the nut is under the plate.
Suitable for clamp or joint drilling machine, drilling on hardwood and wood floors for wood screws.

How To Use:
1. Install the drill bit into the hand drill to ensure it is fastened
2. When working on wood or molding, enlarge and tilt the edge of the hole so that the screws, nails or bolts can be flush with the surface
3. Remember to drill countersink holes vertically in the wood

Package Included:
7 x Woodworking Countersink Drill Bits
1 x Hex L-wrench

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Countersink Drill Bit Set 4Pcs

Special Features

Description

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