Outer diameter x thickness (mm) : 25x9 Pitch (mm) : 1; Specification: M6;

Product name: 22 pieces of high-speed steel coarse tap twist drill set

Product name: 25 pieces of high speed steel all ground black gold twist drill set

Diameter specification (MM) : 13 Included pieces/set: 5;

Idle speed (RPM) : 3200 output specifications: 5/8 -11 UNC spindle; Disk size: 7 ; Eccentricity (mm) : -; Air inlet size: 1/4 ; Minimum trachea inner diameter (mm) : 10;

Specification: M5-M12L(mm) : 110;

Set list: 13 straight shank cobalt twist drill sets (1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5mm)

Product name: 19 wear-resistant straight handle twist drill set

Size: 6

Total length L(mm) : 58L1(mm) : 20.5; D1(mm) : 5; Pitch: 0.8; Specification: thread;

Blade diameter (mm) : 4 Total length (mm) : 43; Blade length (mm) : 11; Handle diameter (mm) : 4;

Blade length: 20 Total length: 60; Diameter: 8;