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Product Name: Plastic Box Set 8 Pieces 3-10mm

Material: High-quality high-carbon steel, hardness of the drill bit working part is HRC50.

Surface treatment: Drill bit groove blackening treatment.

Weight: About 190G (Including the plastic box)

3mmUsed for positioning holes and guiding holes, weight 2g, total length 62mm, blade length 34mm

 4mm for positioning holes, guide holes, weight 5g, total length 75mm, blade length 41mm

5mm for drilling a hole in the three-in-one connecting rod, weight 8.4g, total length 85mm, blade length 52mm

6mm for drilling a hole for a 6mm round wood tenon, weight 12.7g, overall length 89mm, blade length 55mm

7mm for drilling a hole in the three-in-one connecting rod, weight 100g, total length 99mm, blade length 60mm

8mm for drilling 8mm round wood tenon holes, weight 25g, total length 108mm, blade length 70mm

9mm for drilling holes for M8 screw rods, weight 36g, total length 114mm, blade length 74mm

"10mm for hitting10mmThe hole of the round wood tenon weighs 45g and is 120mm long, with an edge length of 86mm.

Product Name: Hanging Bag Set 7 Pieces 4-12mm

Material: High-quality high-carbon steel, hardness of the drill bit working part HRC50.。

Surface treatment: Drill bit groove blackening treatment.

Weight: Approximately 505G (Including the Pouch)

Specifications: 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, length: 300mm

Features: Whether for industrial production or personal use, these are very practical woodworking tools that are deeply loved by woodworkers. They effectively solve the challenges of deep-hole processing in woodworking. The difference between the triple-point woodworking drill and the twist drill is that the former has three points at the head, which is easy to position and does not deviate. When cutting at high speed, the wood becomes powder, mainly used for small hole processing.