หัวเจาะรู ดอกสว่านเจาะรู ดอกสว่านไฟฟ้า แข็งแรงทนทาน สำหรับงานไม้ เหล็ก เซ็ต13ชิ้น/Hole punch head, drill bit, drill bit Strong and durable electric drill bits for woodworking, steel, set, 13 pieces.
Size: 16mm, 18mm, 20mm, 22mm, 25mm, 26mm, 28mm, 30mm, 35mm, 40mm, 45mm, 50mm, 53mm
Features: Widely used for stainless steel plate in 3MM , and iron plate less than 10MM.
And for aluminum alloy metal hole operation.
This hole should be installed for use in electric drill can use sharp, reliable quality, high performance, chip is very smooth.
Not prone to collapse phenomenon.
With excellent performance, sharp edge, wear-resistant characteristics.
Use: open hole saw is installed on the ordinary electric drill.
