Hole saw
Step drill Quattro
TiAlN heat resistant coating for long life span.
Adopting cobalt high-speed steel to ensure high durability.
4-flute spiral achieves a light sharpness and outstanding stability.
Tip special thinning achieves easy positioning with high stabiliry.
Effective length: 4mm
Matching Drill: Electric drill(upper 600W) / Cordless driver drill / Impact driver
※SPQ-633ST can not be used with impact driver 
uses
• Steel (2mm or less)
• Aluminum (2mm or less)
• Stainless (2mm or less *size 633 is 1.5mm or less)
• Wood
• Plastic