Total step drill bit set 3pcs

Total step drill bit set 3pcs

Specifications

• 3 pcs step drill bit set
• 1pcs 4-12mm，1mm/step，Shank diameter：6mm
• 1pcs 4-20mm，2mm/step，Shank diameter：8mm
• 1pcs 4-32mm，2mm/step，Shank diameter：10mm
• Material：HSS
• Applies to Steel Plate thickness≤3mm
• Packed by platic box

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