Description

The ROBERT BOSCH TOOL GROUP DDMS20 is a 20-piece impact-rated drill and driver bit set packaged in a tilt-in/tilt-out case designed for trade use on jobsites. The set includes a full range of insert bits, 2-inch power bits, black oxide drill bits, and a standard bit holder. Driver bits feature an X-Tended Torsion Zone that absorbs the high torque output of impact drivers, extending bit life under heavy use. Precision-engineered tips deliver a tighter fit at the fastener head to reduce cam-out. Heat-treated construction and high-visibility bit markings round out the core design.

This set is suited for electricians, HVAC technicians, plumbers, and general trade contractors who need a compact, organized drill and driver solution on the bench or in the field. The customized storage configuration keeps individual bits accessible without digging through a pouch or loose case. The black oxide coating on the drill bits reduces friction and heat buildup during drilling, which extends bit life in repetitive-use applications.

Key Features

Impact-rated driver and drill bits with X-Tended Torsion Zone to absorb impact driver torque
Precision-engineered driver bit tips reduce cam-out and improve fastener engagement
Black oxide drill bits with lower-friction coating for reduced heat and longer life
Heat-treated bit manufacturing for increased strength under load
Tilt-in/tilt-out case mechanism for quick, easy bit access
High-visibility bit markings allow fast bit identification on the job
Customized internal storage keeps the correct bit at hand at all times

Compatibility

Designed for use with standard 1/4-inch hex-drive impact drivers and drill/drivers commonly used in residential and commercial trade applications.

Installation Notes

Insert bits and power bits are compatible with any 1/4-inch hex chuck; confirm chuck type before use. When using impact-rated bits in a standard drill, do not exceed the drill manufacturer’s recommended torque settings. Store bits in the provided case to prevent tip damage and keep the set complete between jobs.

Technical Specifications

Set Piece Count: 20
Power Bit Length: 2 inches
Drill Bit Sizes Included: 1/8 inches, 3/16 inches, 1/4 inches
Drill Bit Coating: Black Oxide
Driver Bit Types Included: P1, P2 (x2), P2 Reduced, P3, Combo P2R2, R1, R2, R3, T20, T25, T30 (insert); P2, R2, T20, T25 (2-inch power bits)
Case Style: Tilt-In/Tilt-Out Customer Care System
Weight: 4.44 pounds
Unit of Measure: EA