Precision Twist Drill 6000098 SPR-90 1/2 in HSS Spotting Drill Bit 90° Bright Finish

The Precision Twist Drill 6000098 is a 1/2 in diameter SPR-90 Series spotting drill designed for accurate hole location and chamfering in a wide range of materials. Built from medium-alloyed High-Speed Steel (HSS), this drill delivers an optimal balance of hardness, toughness, and wear resistance suitable for demanding production environments.

The bright (uncoated) surface finish promotes smooth chip flow, making it especially effective when working with soft or non-ferrous materials. With a 90° point angle, this spotting drill creates precise, consistent start points that guide subsequent drilling operations and eliminate walking or drift.

Key Specifications:

• Series: SPR-90
• Drill Diameter: 1/2 in
• Overall Length: 6 in
• Flute Length: 1-3/8 in
• Cutting Depth: 1×D
• Number of Flutes: 2, Spiral
• Point Angle: 90°
• Shank: 1/2 in Straight Shank
• Hand of Cut: Right Hand
• Material: High-Speed Steel (HSS)
• Finish: Bright (Uncoated)
• ANSI Ordering Code: SPR-901/2

Compatible Materials:

• Steel and Stainless Steel
• Cast Iron
• Titanium and Nickel Alloys
• Copper and Aluminum
• Magnesium and Synthetic Materials
• Hard Materials

Precision Twist Drill is a trusted brand under Dormer Pramet, delivering industrial-grade cutting tools for aerospace, automotive, and general machining since 1952. Sold individually (1 per pack).