Dormer Pramet A170 20.00 mm HSS ST STRAIGHT SHANK JOBBER DRILL, 1/2IN SHANK

The Dormer Pramet A170 20.00 mm HSS Straight Shank Jobber Drill is a versatile metalworking drill bit designed for both handheld and machine applications. With a 20 mm diameter and a robust 1/2" parallel shank, it fits standard chucks and tooling setups for secure, reliable cutting.

Built from premium HSS material, this drill handles a range of metals—from steel and stainless to aluminium—while delivering consistent performance. Its 118-degree conventional point provides a strong, self-centering start that’s easy to re-sharpen, and the steam oxide finish helps prevent material from sticking to the cutting edge for cleaner holes and reduced downtime.

• 118° conventional point for strong, easy-starts: Delivers quick, precise entry and a cut that resists wandering; easy to re-sharpen for long tool life across steel, aluminium, and stainless steel.
• Steam oxide finish reduces sticking and improves chip flow: Minimizes built‑up edge on the cutting edge, promoting cleaner holes and longer drill life as you work through dense metals.
• 1/2" parallel shank for broad tool compatibility: Fits standard chucks in handheld tools and machines, enabling use with larger diameter drills and reducing slippage for reliable performance.

In practice, this drill streamlines workflows by starting holes cleanly, resisting material buildup, and fitting the tooling you already own. Its reliable performance across common metals helps you complete projects with confidence, finish quality consistent holes, and maintain steady productivity in both manual and machine-driven operations.