Walter #21SST+ Drill Set with Box (01E621)
Walter 01E621 #21 SST+ Drill Set with Box is a precision-engineered drill set designed for speed, accuracy, and durability. Made from premium cobalt HSS, these SST+ drill bits drill up to 30% faster than standard HSS bits, making them ideal for harder materials. Each bit features a 135° self-centering split-point to minimize walking and reduce thrust, while the bronze SST surface treatment enhances lubricity and extends tool life. The high-flow flute design allows rapid chip evacuation, and the round shank with back-tapered body ensures stability and control during use. Packaged in a shock-resistant, extra-thick polyethylene carrying case with clearly marked sizes, this set is perfect for professional workshops, industrial applications, and mobile use.
Premium cobalt HSS construction for drilling harder materials.
135° self-centering split-point reduces walking and thrust.
Bronze SST surface treatment improves lubricity and durability.
High-flow flute design for rapid chip evacuation.
Round shank with back-tapered body for stability and control.
Shock-resistant carrying case with clearly marked bit sizes for easy selection.
Drills up to 30% faster than standard HSS drill bits.
Delivers accurate, clean holes across a variety of materials.
Easy identification and selection with clearly marked bit sizes.
Protects drill bits during storage and transport.
Extended tool life reduces replacement costs over time.
Technical Specifications:
Type: #21 SST+ Drill Set
Material: Premium cobalt HSS blend
Point Angle: 135° split-point, self-centering
Surface Treatment: Bronze SST for lubricity and extended life
Shank: Round, back-tapered body
Packaging: Extra-thick polyethylene carrying case with size markings
Applications: Metalworking, industrial drilling, mobile and workshop use
Product identification
- Brand: Walter
- Model / MPN: 01E621






