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Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank
Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank
Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank

Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank

Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank is built for precision and efficiency, delivering clean, progressively larger holes in metal and plastic with a sin…

Klein Tools MPN KTSB01
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Typical Store Price i
Typical store price: low $24.99, average $29.99
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About Product Overview

Klein Tools 4.77 in. L High Speed Steel Step Drill Bit Hex Shank is built for precision and efficiency, delivering clean, progressively larger holes in metal and plastic with a single bit. With an overall length of 4.77 inches, this bit reaches into tight spaces and through panels where multiple hole sizes are needed without swapping bits.

Designed to reduce downtime and upgrades in your workflow, the stepped geometry lets you enlargen holes smoothly from a small pilot to larger diameters in one pass. The result is accurate hole sizes, fewer burrs, and a faster drilling process—ideal for electricians, metalworkers, and DIY enthusiasts who value reliability and speed.

  • High Speed Steel construction for durability and heat resistance in metal drilling applications.
  • Hex shank provides a secure grip in drill chucks and works well with quick-change adapters, minimizing slip under load.
  • 4.77-inch overall length gives you extended reach for through-holes in panels, boxes, and metalwork where space is limited.
  • Single-piece design packaged in clamshell for convenient storage and immediate use straight from the package.

Ideal use cases

  • Electrical installations: drilling neatly sized holes in metal electrical boxes and panels without multiple bit changes.
  • HVAC and metal fabrication: efficient sheet-metal drilling with clean edges and consistent hole sizes.
  • General metalworking and light fabrication where you need to enlarge holes progressively.
  • Plastic or soft substrate drilling where a stepped hole is advantageous, reducing breakout and improving finish.

Why choose this Klein Tools step drill bit

As a trusted name in hand tools, Klein Tools combines durable materials with practical design. This HSS step drill bit with a hex shank is optimized for routine professional tasks and demanding shop environments, offering a reliable solution when you need multiple hole sizes in one tool without carrying a whole bit assortment.

Pro tips for best results: clamp your workpiece securely, start with a small step to establish alignment, use steady feeds with moderate speed (lower speeds for metal), and apply light lubrication to extend bit life and achieve smoother finishes.

The Details Specifications

Brand Klein Tools
SKU 2487528
UPC 092644591013
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 1 × 4 × 6
Weight 0 lbs
Cubic Feet 0.02328 ft³
Country of Origin THAILAND
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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