DRILL D188 REDUCED SHANK 1/2INCH HSS

The Sutton Tools D188 Reduced Shank Drill – 1/2" HSS is built for heavy-duty drilling applications that require larger hole sizes while still using a standard 13mm drill chuck. Ideal for slow-speed (≤350 RPM), large-scale boring, this drill bit is engineered for stability, reliability, and long service life.

Constructed from M2 High Speed Steel (HSS), it delivers an excellent balance of strength, wear resistance, and heat durability. The 118° standard point ensures consistent performance across general-purpose drilling tasks, while the blue steam-oxide finish helps prevent chip build-up and reduces cutting friction—especially beneficial when drilling ferrous metals and low carbon steels.

All drills in this series feature a 152mm overall length and 86mm flute length, making them suitable for a wide range of industrial and workshop applications.

Features:

• Reduced shank fits 13mm drill chucks

• 118° standard point for accurate, general-purpose drilling

• Made from M2 HSS for superior strength and heat resistance

• Blue (steam oxide) finish reduces friction and chip build-up

• Optimised for drilling ferrous metals

• 152mm overall length, 86mm flute length

• Suitable for slow-speed large-scale boring (≤350 RPM)

Specifications:

• Material: High Speed Steel (HSS)

• Finish: Blue (Steam Oxide)

• Point Angle: 118°

• Shank: Reduced shank – suits 13mm chuck

• Helix Angle: R30

• Point Form: Form A

• Max Cut Depth: 5×D

• Series: Sutton D188