LinkMejor Countersink Drill Bit Set, 19PCS Tapered Wood Drill Bit Set

Newly upgraded professional 19-piece countersink drill set:
5-piece HSS M2 nitride-treated countersink drill: #4 (7/64"), #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32")
1-piece replacement drill bit: #4
2-piece drill depth stop rings: 3/8", 1/2"
2-piece wood plug cutters: 3/8", 1/2"
3-piece 1" S2 impact screwdriver bits: slotted (SL3/16, SL1/4), square (SQ2)
3-piece 2" S2 impact screwdriver bits: Philips (PH1, PH2), Torx (T25)
1-piece 3" S2 impact screwdriver bits: Philips (PH2)
1-piece extendable magnetic extension
1-piece 1/4’’ hex wrench
Includes a box for convenient storage
The all-in-one wood drill bit set features:
Drilling, countersinking (82°angle), and counterbore, and creating tapered plugs can be done in one step. The drill depth is adjustable, and with a stop ring, you can precisely adjust the countersink depth to meet your specific needs.
Countersink diameter: The #4, #6, #8, and #10 countersink bits all correspond to a 3/8’’ diameter, while the #12 countersink bit corresponds to a 1/2’’ diameter.
Unique Designs of the counter sink drill bit for wood:
1. High-speed nitriding treatment increases hardness and wear resistance, resulting in a longer lifespan than standard drill bits on the market.
2. The tapered drill bit cuts more efficiently than a flat-head drill, producing holes that are more compatible with threaded screws.
3. The four-edge design of the cutting edge and corkscrew ensures better chip evacuation.
4. The retractable magnetic rod provides greater stability when driving long screws, reducing shaking and falling, improving work efficiency.
Drilling precautions:
1. Maintain a vertical drilling angle at all times.
2. Do not drill too quickly.
3. Ensure the countersink bit is securely tightened with a hex wrench before drilling to prevent it from getting stuck in the wood and becoming impossible to remove.