T&O H.S.S. 4MT Taper Shank Drill, 1-1/4 Size, 7-7/8 Flute Length, 13-1/2 Overall Length
T&O H.S.S. 4MT Taper Shank Drill, 1-1/4" Size, 7-7/8" Flute Length, 13-1/2" Overall Length H.S.S. - High Speed Steel Hardness: 58 to 60 RC No. of Flutes: 2 Drill Point Angle: 118 Point Sharpening Type: Thin Relieved Web Popular drilling diameters Excellent
T&O H.S.S. 4MT Taper Shank Drill, 1-1/4″ Size, 7-7/8″ Flute Length, 13-1/2″ Overall Length
- H.S.S. – High Speed Steel
- Hardness: 58 to 60 RC
- No. of Flutes: 2
- Drill Point Angle: 118
- Point Sharpening Type: Thin Relieved Web
- Popular drilling diameters
- Excellent for drilling carbon steels to HB225, alloy steels HB225-325.
- Good results when drilling prehardened steels HrC30-45, cast iron, aluminum and mild steels.
- Helix 30 to 35.
- Black finish.
- Right hand (clockwise rotation) cutting direction.
- Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics
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