Bosch High-speed steel turbo impact step drill bit (3/16 in – 7/8 in)

High-speed steel turbo impact step drill bit (3/16 in – 7/8 in)

Features

  • Impact-rated design for use with impact drivers and drill/drivers
  • Balanced double-flute design to reduce chatter and vibration
  • Sharp cutting edges for consistent hole quality
  • 1/4 in hex shank for quick-change chucks and impact drivers
  • 1/16 in diameter increments with 1/8 in step depth
  • Suitable for drilling common conduit sizes and knockout holes
  • Intended for electrical, plumbing, and HVAC applications
  • Swiss engineered and manufactured

Specifications

Part Number IMSDC2
Material High-speed steel (HSS)
Diameter Range, From 3/16 in
Diameter Range, To 7/8 in
Diameter Increment 1/16 in
Step Depth 1/8 in
Shank 1/4 in hex
Pack Quantity 1
Weight 0.15 lb
Upc 000346657012
Intended Use Impact drivers and cordless drills
Applications Electrical, plumbing, HVAC
Origin Swiss made

High-speed steel step drill bit sized to cut holes from 3/16 in to 7/8 in in a range of materials. It is designed for use with impact drivers and cordless drills, and incorporates a balanced double-flute geometry and sharp cutting edges to reduce vibration and produce consistent hole quality. The bit has a 1/4 in hex shank and 1/8 in step depth with 1/16 in increments.

Model Number: IMSDC2

Project Ideas

Business

Pre-Drilled Pedal Enclosures Shop

Offer accurately drilled aluminum stompbox enclosures for DIY musicians and boutique builders. Provide standard templates (1590B, 125B, 1590BB, etc.) and custom layouts. The step bit covers all common hole sizes in one tool, speeding production while keeping edges clean and consistent.


On-Site Cable Pass‑Through and Grommet Install

Mobile service for offices and home studios: cleanly drill cable pass‑throughs in desks, conference tables, AV cabinets, and rack blanks, then install matching grommets/brush plates. The 1/16 in increments let you fit a wide range of grommets without guesswork, reducing install times.


Electrical Box and Panel Retrofit Support

Partner with electricians to resize and add conduit entries on junction boxes, gutters, and enclosures where permitted. Use the impact-rated step bit to quickly create precise holes for strain reliefs, cord grips, and small knockout sizes, then finish with bushings and labels. Focus on fast turnaround and code-compliant finishes.


Custom Aluminum Pegboard and Tool Panels

Fabricate and sell modular aluminum pegboard panels for shops, vans, and kitchens. Offer bespoke hole patterns, anodized finishes, and mounting hardware kits. The step bit’s clean, burr-reduced holes cut finishing time and keep margins healthy on small-batch runs.


Garden Irrigation Manifold Kits

Produce pre-drilled PVC manifolds with barbed fittings, filters, and pressure regulators for raised beds and container gardens. Sell as DIY kits with clear sizing charts. Using a step bit ensures tight, leak-resistant holes that match popular emitter and adapter sizes, minimizing returns.

Creative

Copper Pipe Desk Lamp with Metal Shade

Build an industrial-style desk lamp from copper pipe and a thin-gauge steel or aluminum shade. Use the step bit to: 1) drill the base plate for mounting screws, 2) create a clean 3/8–1/2 in exit hole for the power cord with a rubber grommet, and 3) size the shade’s center hole precisely to the lamp holder’s threaded neck. The 1/16 in increments let you sneak up on a perfect fit without swapping bits.


Custom Aluminum Pegboard Tool Wall

Cut aluminum sheet to size and use the step drill to create a grid of clean, burr-free holes in multiple diameters (1/4, 3/8, 1/2 in) for hooks, pegs, and French-cleat adapters. The double-flute design keeps chatter down so holes stay round and consistent, and the 1/8 in step depth helps avoid over-penetration on thin sheet.


Guitar Effects Pedal Enclosure Drilling

Mod and build stompbox enclosures from cast aluminum. The step bit makes fast, concentric holes for footswitches (1/2 in), potentiometers (5/16–3/8 in), LEDs (1/4 in), and 1/4 in jacks (3/8 in). One bit covers the whole layout with clean edges that need minimal deburring.


PVC Drip Irrigation Manifold

Create a compact manifold from Schedule 40 PVC for garden beds. Use the step bit to drill exact 1/4–1/2 in holes for barbed emitters and threaded adapters, then add bulkhead fittings where needed. The bit’s control in plastic helps prevent cracking while letting you dial in snug, leak-resistant fits.


Upcycled Tin/Pendant Lights

Turn vintage tins or metal cans into pendant lights. The step bit cleanly opens cord pass-throughs (3/8–1/2 in), ventilation holes in decorative patterns, and the center opening sized to your strain relief. Even thin, delicate metal won’t grab as easily thanks to the balanced double-flute geometry.