Technical Specification Confirmation
PROCUREMENT & SUPPLY DECISION RECORD
Ref: ACG-SPEC-MQEI1T0V  ·  Generated: 15 Jun 2026
ACG AgaCanGroup
sales@agacaninvestment.com
agacangroup.com
Dormer HSS Countersink, 40mm Head, 3 Flute(s), 90°, 1 Piece(s)
Dormer
Dormer HSS Countersink, 40mm Head, 3 Flute(s), 90°, 1 Piece(s)
Part No.
G10640.0
Procurement Intelligence
Dormer HSS standard countersink for 90° conical seat preparation in drilling operations. This 40mm head, 3-flute design is installed after primary drilling to create beveled recesses for countersunk fasteners. Verify flute condition and arbor compatibility before procurement, as HSS tools require proper coolant flow and spindle speed matching.
90° countersunk hole preparation
Before ordering — verify:
☐ HSS material durability
☐ Flute wear monitoring
☐ Spindle speed compatibility
Technical Specifications
Drill Bit TypeCountersink
Head Diameter40mm
Countersink Angle90°
Number Of Flutes3
MaterialHSS
Overall Length118 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/dormer-hss-countersink-40mm-head-3-flute-s-90-1-piece-s?mal=66275a8c12f5f0d90d99c558
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.