Technical Specification Confirmation
PROCUREMENT & SUPPLY DECISION RECORD
Ref: ACG-SPEC-MQEL5FWO  ·  Generated: 15 Jun 2026
ACG AgaCanGroup
sales@agacaninvestment.com
agacangroup.com
EXACT HSS Drill Bit, 20.5mm Head, 3 Flute(s), 90°, 1 Piece(s)
EXACT
EXACT HSS Drill Bit, 20.5mm Head, 3 Flute(s), 90°, 1 Piece(s)
Part No.
05520
Procurement Intelligence
This is an EXACT HSS countersink drill bit, specifically a 3-flute 90° countersink designed for creating conical depressions in drilled holes for countersunk fasteners. Typically used in metalworking and assembly operations, the critical verification point is confirming the 20.5mm head diameter matches your fastener counterbore requirements and that HSS material is suitable for your workpiece hardness.
Countersinking pilot holes fasteners
Before ordering — verify:
☐ Shank fit verification
☐ Workpiece material compatibility
☐ Spindle speed rating
Technical Specifications
Drill Bit TypeCountersink
Head Diameter20.5mm
Countersink Angle90°
Number Of Flutes3
MaterialHSS
Overall Length63 mm
Shank Diameter10 mm
Number of Pieces1
ACG Industrial & Infrastructure Solutions
Kampala, Uganda  ·  Malatya, Turkey
http://agacangroup.com/product/mechanical/power-tools-soldering-welding/drill-bits-parts/countersinks/exact-hss-drill-bit-20-5mm-head-3-flute-s-90-1-piece-s?mal=66275ad212f5f0d90d9aaa77
This document confirms the above specification is available in the ACG Industrial catalogue. Pricing and availability on request. Forward to your procurement team to initiate an RFQ.